The remote host answers to an ICMP timestamp request.  This allows an attacker to know the date that is set on the targeted machine, which may assist an unauthenticated, remote attacker in defeating time-based authentication protocols.

Timestamps returned from machines running Windows Vista / 7 / 2008 / 2008 R2 are deliberately incorrect, but usually within 1000 seconds of the actual system time.

The version of AOS installed on the remote host is prior to 6.8.1. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-6.8.1 advisory.

  - An information disclosure vulnerability exists in curl <v8.1.0 when doing HTTP(S) transfers, libcurl might     erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the     `CURLOPT_POSTFIELDS` option has been set, if the same handle previously wasused to issue a `PUT` request     which used that callback. This flaw may surprise the application and cause it to misbehave and either send     off the wrong data or use memory after free or similar in the second transfer. The problem exists in the     logic for a reused handle when it is (expected to be) changed from a PUT to a POST. (CVE-2023-28322)

  - This flaw allows an attacker to insert cookies at will into a running program using libcurl, if the     specific series of conditions are met. libcurl performs transfers. In its API, an application creates     easy handles that are the individual handles for single transfers. libcurl provides a function call that     duplicates en easy handle called     [curl_easy_duphandle](https://curl.se/libcurl/c/curl_easy_duphandle.html). If a transfer has cookies     enabled when the handle is duplicated, the cookie-enable state is also cloned - but without cloning the     actual cookies. If the source handle did not read any cookies from a specific file on disk, the cloned     version of the handle would instead store the file name as `none` (using the four ASCII letters, no     quotes). Subsequent use of the cloned handle that does not explicitly set a source to load cookies from     would then inadvertently load cookies from a file named `none` - if such a file exists and is readable in     the current directory of the program using libcurl. And if using the correct file format of course.
    (CVE-2023-38546)

  - CVE-2023-38546 is a cookie injection vulnerability in the curl_easy_duphandle(), a function in libcurl     that duplicates easy handles.  When duplicating an easy handle, if cookies are enabled, the duplicated     easy handle will not duplicate the cookies themselves, but would instead set the filename to none.'     Therefore, when the duplicated easy handle is subsequently used, if a source was not set for the cookies,     libcurl would attempt to load them from the file named none' on the disk.  This vulnerability is rated     low, as the various conditions required for exploitation are unlikely.  (CVE-2023-38546)

  - This flaw allows a malicious HTTP server to set super cookies in curl that are then passed back to more     origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get     sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in     curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a     cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though     `co.uk` is listed as a PSL domain. (CVE-2023-46218)

  - libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are     required in the case of a large token for which multiple buffer fills are needed. (CVE-2023-52425)

  - This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. When curl is asked to     pass along the host name to the SOCKS5 proxy to allow that to resolve the address instead of it getting     done by curl itself, the maximum length that host name can be is 255 bytes. If the host name is detected     to be longer, curl switches to local name resolving and instead passes on the resolved address only. Due     to this bug, the local variable that means let the host resolve the name could get the wrong value     during a slow SOCKS5 handshake, and contrary to the intention, copy the too long host name to the target     buffer instead of copying just the resolved address there. The target buffer being a heap based buffer,     and the host name coming from the URL that curl has been told to operate with. (CVE-2023-38545)

  - CVE-2023-38545 is a heap-based buffer overflow vulnerability in the SOCKS5 proxy handshake in libcurl and     curl.  When curl is given a hostname to pass along to a SOCKS5 proxy that is greater than 255 bytes in     length, it will switch to local name resolution in order to resolve the address before passing it on to     the SOCKS5 proxy. However, due to a bug introduced in 2020, this local name resolution could fail due to a     slow SOCKS5 handshake, causing curl to pass on the hostname greater than 255 bytes in length into the     target buffer, leading to a heap overflow.  The advisory for CVE-2023-38545 gives an example exploitation     scenario of a malicious HTTPS server redirecting to a specially crafted URL. While it might seem that an     attacker would need to influence the slowness of the SOCKS5 handshake, the advisory states that server     latency is likely slow enough to trigger this bug. (CVE-2023-38545)

  - close_altfile in filename.c in less before 606 omits shell_quote calls for LESSCLOSE. (CVE-2022-48624)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of     Oracle Java SE (component: Hotspot). Supported versions that are affected are Oracle Java SE: 8u401,     8u401-perf, 11.0.22, 17.0.10, 21.0.2, 22; Oracle GraalVM for JDK: 17.0.10, 21.0.2, 22; Oracle GraalVM     Enterprise Edition: 20.3.13 and 21.3.9. Difficult to exploit vulnerability allows unauthenticated attacker     with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle     GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to     cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM     Enterprise Edition. Note: This vulnerability can be exploited by using APIs in the specified Component,     e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java     deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets,     that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox     for security. (CVE-2024-21011)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of     Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 11.0.22,     17.0.10, 21.0.2, 22; Oracle GraalVM for JDK: 17.0.10, 21.0.2, 22; Oracle GraalVM Enterprise Edition:
    20.3.13 and 21.3.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access     via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise     Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete     access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible     data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java     Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes     from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java     deployments, typically in servers, that load and run only trusted code (e.g., code installed by an     administrator). (CVE-2024-21012)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of     Oracle Java SE (component: Hotspot). Supported versions that are affected are Oracle Java SE: 8u401-perf,     11.0.22, 17.0.10, 21.0.2, 22; Oracle GraalVM for JDK: 17.0.10, 21.0.2 and 22; Oracle GraalVM Enterprise     Edition: 21.3.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access     via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise     Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete     access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible     data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a     web service which supplies data to the APIs. This vulnerability also applies to Java deployments,     typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load     and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for     security. (CVE-2024-21068)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE     (component: Concurrency). Supported versions that are affected are Oracle Java SE: 8u401, 8u401-perf,     11.0.22; Oracle GraalVM Enterprise Edition: 20.3.13 and 21.3.9. Difficult to exploit vulnerability allows     unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle     GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to     cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition.
    Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web     service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in     clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run     untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security.
    (CVE-2024-21085)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of     Oracle Java SE (component: Hotspot). Supported versions that are affected are Oracle Java SE: 8u401,     8u401-perf, 11.0.22, 17.0.10, 21.0.2, 22; Oracle GraalVM for JDK: 17.0.10, 21.0.2, 22; Oracle GraalVM     Enterprise Edition: 20.3.13 and 21.3.9. Difficult to exploit vulnerability allows unauthenticated attacker     with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle     GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update,     insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise     Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified     Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to     Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java     applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java     sandbox for security. (CVE-2024-21094)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too     large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is     over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or     parameters that have been supplied. Some of those checks use the supplied modulus value even if it has     already been found to be too large. An application that calls DH_check() and supplies a key or parameters     obtained from an untrusted source could be vulernable to a Denial of Service attack. The function     DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those     other functions may similarly be affected. The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The     OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-3446)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter     value can also trigger an overly long computation during some of these checks. A correct q value, if     present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if     q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an     untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the -check     option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS     providers are not affected by this issue. (CVE-2023-3817)

  - ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts. (CVE-1999-0524)

  - A flaw was found in Buildah (and subsequently Podman Build) which allows containers to mount arbitrary     locations on the host filesystem into build containers. A malicious Containerfile can use a dummy image     with a symbolic link to the root filesystem as a mount source and cause the mount operation to mount the     host root filesystem inside the RUN step. The commands inside the RUN step will then have read-write     access to the host filesystem, allowing for full container escape at build time. (CVE-2024-1753)

  - Spring Security, versions 5.7 prior to 5.7.5 and 5.6 prior to 5.6.9 could be susceptible to authorization     rules bypass via forward or include dispatcher types. Specifically, an application is vulnerable when all     of the following are true: The application expects that Spring Security applies security to forward and     include dispatcher types. The application uses the AuthorizationFilter either manually or via the     authorizeHttpRequests() method. The application configures the FilterChainProxy to apply to forward and/or     include requests (e.g. spring.security.filter.dispatcher-types = request, error, async, forward, include).
    The application may forward or include the request to a higher privilege-secured endpoint.The application     configures Spring Security to apply to every dispatcher type via     authorizeHttpRequests().shouldFilterAllDispatcherTypes(true) (CVE-2022-31692)

  - The DNS message parsing code in `named` includes a section whose computational complexity is overly high.
    It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive     CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative     servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through     9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1     through 9.18.21-S1. (CVE-2023-4408)

  - Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote     attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the     KeyTrap issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the     protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG     records. (CVE-2023-50387)

  - The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped)     allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC     responses in a random subdomain attack, aka the NSEC3 issue. The RFC 5155 specification implies that an     algorithm must perform thousands of iterations of a hash function in certain situations. (CVE-2023-50868)

  - A flaw was found in GnuTLS. The Minerva attack is a cryptographic vulnerability that exploits     deterministic behavior in systems like GnuTLS, leading to side-channel leaks. In specific scenarios, such     as when using the GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE flag, it can result in a noticeable step in nonce size     from 513 to 512 bits, exposing a potential timing side-channel. (CVE-2024-28834)

  - The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to     it by up to 4 bytes when converting strings to the ISO-2022-CN-EXT character set, which may be used to     crash an application or overwrite a neighbouring variable. (CVE-2024-2961)

  - There is a carry propagation bug in the MIPS32 and MIPS64 squaring procedure. Many EC algorithms are     affected, including some of the TLS 1.3 default curves. Impact was not analyzed in detail, because the     pre-requisites for attack are considered unlikely and include reusing private keys. Analysis suggests that     attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not     believed likely. Attacks against DH are considered just feasible (although very difficult) because most of     the work necessary to deduce information about a private key may be performed offline. The amount of     resources required for such an attack would be significant. However, for an attack on TLS to be     meaningful, the server would have to share the DH private key among multiple clients, which is no longer     an option since CVE-2016-0701. This issue affects OpenSSL versions 1.0.2, 1.1.1 and 3.0.0. It was     addressed in the releases of 1.1.1m and 3.0.1 on the 15th of December 2021. For the 1.0.2 release it is     addressed in git commit 6fc1aaaf3 that is available to premium support customers only. It will be made     available in 1.0.2zc when it is released. The issue only affects OpenSSL on MIPS platforms. Fixed in     OpenSSL 3.0.1 (Affected 3.0.0). Fixed in OpenSSL 1.1.1m (Affected 1.1.1-1.1.1l). Fixed in OpenSSL 1.0.2zc-     dev (Affected 1.0.2-1.0.2zb). (CVE-2021-4160)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host answers to an ICMP_MASKREQ query and responds with its netmask.  An attacker can use this information to understand how your network is set up and how routing is done.  This may help him to bypass your filters.

ID	Name	Product	Family	Published	Updated	Severity
10114	ICMP Timestamp Request Remote Date Disclosure	Nessus	General	8/1/1999	5/3/2024	low
202829	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-6.8.1)	Nessus	Misc.	7/22/2024	8/2/2024	critical
10113	ICMP Netmask Request Information Disclosure	Nessus	General	7/29/1999	5/3/2024	low

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