The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1325 advisory.

  - The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go allows an attacker to     crash a server in certain circumstances involving AddHostKey. (CVE-2022-27191)

  - An incorrect handling of the supplementary groups in the Buildah container engine might lead to the     sensitive information disclosure or possible data modification if an attacker has direct access to the     affected container where supplementary groups are used to set access permissions and is able to execute a     binary code in that container. (CVE-2022-2990)

  - Openshift 4.9 does not use HTTP Strict Transport Security (HSTS) which may allow man-in-the-middle (MITM)     attacks. (CVE-2022-3259)

  - An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server     connections contain a cache of HTTP header keys sent by the client. While the total number of entries in     this cache is capped, an attacker sending very large keys can cause the server to allocate approximately     64 MiB per open connection. (CVE-2022-41717)

  - A path traversal vulnerability exists in filepath.Clean on Windows. On Windows, the filepath.Clean     function could transform an invalid path such as a/../c:/b into the valid path c:\b. This     transformation of a relative (if invalid) path into an absolute path could enable a directory traversal     attack. After fix, the filepath.Clean function transforms this path into the relative (but still invalid)     path .\c:\b. (CVE-2022-41722)

  - A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient     to cause a denial of service from a small number of small requests. (CVE-2022-41723)

  - Large handshake records may cause panics in crypto/tls. Both clients and servers may send large TLS     handshake records which cause servers and clients, respectively, to panic when attempting to construct     responses. This affects all TLS 1.3 clients, TLS 1.2 clients which explicitly enable session resumption     (by setting Config.ClientSessionCache to a non-nil value), and TLS 1.3 servers which request client     certificates (by setting Config.ClientAuth >= RequestClientCert). (CVE-2022-41724)

  - A denial of service is possible from excessive resource consumption in net/http and mime/multipart.
    Multipart form parsing with mime/multipart.Reader.ReadForm can consume largely unlimited amounts of memory     and disk files. This also affects form parsing in the net/http package with the Request methods FormFile,     FormValue, ParseMultipartForm, and PostFormValue. ReadForm takes a maxMemory parameter, and is documented     as storing up to maxMemory bytes +10MB (reserved for non-file parts) in memory. File parts which cannot     be stored in memory are stored on disk in temporary files. The unconfigurable 10MB reserved for non-file     parts is excessively large and can potentially open a denial of service vector on its own. However,     ReadForm did not properly account for all memory consumed by a parsed form, such as map entry overhead,     part names, and MIME headers, permitting a maliciously crafted form to consume well over 10MB. In     addition, ReadForm contained no limit on the number of disk files created, permitting a relatively small     request body to create a large number of disk temporary files. With fix, ReadForm now properly accounts     for various forms of memory overhead, and should now stay within its documented limit of 10MB + maxMemory     bytes of memory consumption. Users should still be aware that this limit is high and may still be     hazardous. In addition, ReadForm now creates at most one on-disk temporary file, combining multiple form     parts into a single temporary file. The mime/multipart.File interface type's documentation states, If     stored on disk, the File's underlying concrete type will be an *os.File.. This is no longer the case when     a form contains more than one file part, due to this coalescing of parts into a single file. The previous     behavior of using distinct files for each form part may be reenabled with the environment variable     GODEBUG=multipartfiles=distinct. Users should be aware that multipart.ReadForm and the http.Request     methods that call it do not limit the amount of disk consumed by temporary files. Callers can limit the     size of form data with http.MaxBytesReader. (CVE-2022-41725)

  - An uncontrolled resource consumption vulnerability was discovered in HAProxy which could crash the     service. This issue could allow an authenticated remote attacker to run a specially crafted malicious     server in an OpenShift cluster. The biggest impact is to availability. (CVE-2023-0056)

  - A flaw was found in github.com/openshift/apiserver-library-go, used in OpenShift 4.12 and 4.11, that     contains an issue that can allow low-privileged users to set the seccomp profile for pods they control to     unconfined. By default, the seccomp profile used in the restricted-v2 Security Context Constraint (SCC)     is runtime/default, allowing users to disable seccomp for pods they can create and modify.
    (CVE-2023-0229)

  - A Time-of-check Time-of-use (TOCTOU) flaw was found in podman. This issue may allow a malicious user to     replace a normal file in a volume with a symlink while exporting the volume, allowing for access to     arbitrary files on the host file system. (CVE-2023-0778)

  - Werkzeug is a comprehensive WSGI web application library. Prior to version 2.2.3, Werkzeug's multipart     form data parser will parse an unlimited number of parts, including file parts. Parts can be a small     amount of bytes, but each requires CPU time to parse and may use more memory as Python data. If a request     can be made to an endpoint that accesses `request.data`, `request.form`, `request.files`, or     `request.get_data(parse_form_data=False)`, it can cause unexpectedly high resource usage. This allows an     attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it.
    The amount of CPU time required can block worker processes from handling legitimate requests. The amount     of RAM required can trigger an out of memory kill of the process. Unlimited file parts can use up memory     and file handles. If many concurrent requests are sent continuously, this can exhaust or kill all     available workers. Version 2.2.3 contains a patch for this issue. (CVE-2023-25577)

  - HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in     some situations, aka request smuggling. The HTTP header parsers in HAProxy may accept empty header field     names, which could be used to truncate the list of HTTP headers and thus make some headers disappear after     being parsed and processed for HTTP/1.0 and HTTP/1.1. For HTTP/2 and HTTP/3, the impact is limited because     the headers disappear before being parsed and processed, as if they had not been sent by the client. The     fixed versions are 2.7.3, 2.6.9, 2.5.12, 2.4.22, 2.2.29, and 2.0.31. (CVE-2023-25725)

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

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:7398 advisory.

  - Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume     significant system resources. If parsing user input, this may be used as a denial of service vector.
    (CVE-2021-4235)

  - Acceptance of some invalid Transfer-Encoding headers in the HTTP/1 client in net/http before Go 1.17.12     and Go 1.18.4 allows HTTP request smuggling if combined with an intermediate server that also improperly     fails to reject the header as invalid. (CVE-2022-1705)

  - In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because     an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error. (CVE-2022-27664)

  - Reader.Read does not set a limit on the maximum size of file headers. A maliciously crafted archive could     cause Read to allocate unbounded amounts of memory, potentially causing resource exhaustion or panics.
    After fix, Reader.Read limits the maximum size of header blocks to 1 MiB. (CVE-2022-2879)

  - Requests forwarded by ReverseProxy include the raw query parameters from the inbound request, including     unparsable parameters rejected by net/http. This could permit query parameter smuggling when a Go proxy     forwards a parameter with an unparsable value. After fix, ReverseProxy sanitizes the query parameters in     the forwarded query when the outbound request's Form field is set after the ReverseProxy. Director     function returns, indicating that the proxy has parsed the query parameters. Proxies which do not parse     query parameters continue to forward the original query parameters unchanged. (CVE-2022-2880)

  - Incorrect handling of the supplementary groups in the CRI-O container engine might lead to sensitive     information disclosure or possible data modification if an attacker has direct access to the affected     container where supplementary groups are used to set access permissions and is able to execute a binary     code in that container. (CVE-2022-2995)

  - python-scciclient: missing server certificate verification (CVE-2022-2996)

  - Uncontrolled recursion in Reader.Read in compress/gzip before Go 1.17.12 and Go 1.18.4 allows an attacker     to cause a panic due to stack exhaustion via an archive containing a large number of concatenated 0-length     compressed files. (CVE-2022-30631)

  - Users authorized to list or watch one type of namespaced custom resource cluster-wide can read custom     resources of a different type in the same API group without authorization. Clusters are impacted by this     vulnerability if all of the following are true: 1. There are 2+ CustomResourceDefinitions sharing the same     API group 2. Users have cluster-wide list or watch authorization on one of those custom resources. 3. The     same users are not authorized to read another custom resource in the same API group. (CVE-2022-3162)

  - A security issue was discovered in kube-apiserver that allows an aggregated API server to redirect client     traffic to any URL. This could lead to the client performing unexpected actions as well as forwarding the     client's API server credentials to third parties. (CVE-2022-3172)

  - Improper exposure of client IP addresses in net/http before Go 1.17.12 and Go 1.18.4 can be triggered by     calling httputil.ReverseProxy.ServeHTTP with a Request.Header map containing a nil value for the     X-Forwarded-For header, which causes ReverseProxy to set the client IP as the value of the X-Forwarded-For     header. (CVE-2022-32148)

  - A too-short encoded message can cause a panic in Float.GobDecode and Rat GobDecode in math/big in Go     before 1.17.13 and 1.18.5, potentially allowing a denial of service. (CVE-2022-32189)

  - JoinPath and URL.JoinPath do not remove ../ path elements appended to a relative path. For example,     JoinPath(https://go.dev, ../go) returns the URL https://go.dev/../go, despite the JoinPath     documentation stating that ../ path elements are removed from the result. (CVE-2022-32190)

  - Openshift 4.9 does not use HTTP Strict Transport Security (HSTS) which may allow man-in-the-middle (MITM)     attacks. (CVE-2022-3259)

  - The version of cri-o as released for Red Hat OpenShift Container Platform 4.9.48, 4.10.31, and 4.11.6 via     RHBA-2022:6316, RHBA-2022:6257, and RHBA-2022:6658, respectively, included an incorrect version of cri-o     missing the fix for CVE-2022-27652, which was previously fixed in OCP 4.9.41 and 4.10.12 via     RHBA-2022:5433 and RHSA-2022:1600. This issue could allow an attacker with access to programs with     inheritable file capabilities to elevate those capabilities to the permitted set when execve(2) runs. For     more details, see https://access.redhat.com/security/cve/CVE-2022-27652. (CVE-2022-3466)

  - Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion     or denial of service. The parsed regexp representation is linear in the size of the input, but in some     cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger     amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular     expressions whose representation would use more space than that are rejected. Normal use of regular     expressions is unaffected. (CVE-2022-41715)

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

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1325 advisory.

    Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution     designed for on-premise or private cloud deployments.

    This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.13.0. See the following     advisory for the container images for this release:

    https://access.redhat.com/errata/RHSA-2023:1326

    Security Fix(es):

    * python-werkzeug: high resource usage when parsing multipart form data with many fields (CVE-2023-25577)

    * golang: net/http: excessive memory growth in a Go server accepting HTTP/2 requests (CVE-2022-41717)

    * net/http, golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding (CVE-2022-41723)

    * golang: crypto/tls: large handshake records may cause panics (CVE-2022-41724)

    * golang: net/http, mime/multipart: denial of service from excessive resource consumption (CVE-2022-41725)

    * haproxy: segfault DoS (CVE-2023-0056)

    * openshift/apiserver-library-go: Bypass of SCC seccomp profile restrictions (CVE-2023-0229)

    * podman: symlink exchange attack in podman export volume (CVE-2023-0778)

    * haproxy: request smuggling attack in HTTP/1 header parsing (CVE-2023-25725)

    * buildah: possible information disclosure and modification (CVE-2022-2990)

    * OpenShift: Missing HTTP Strict Transport Security (CVE-2022-3259)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    All OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images     when they are available in the appropriate release channel. To check for available updates, use the     OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at     https://docs.openshift.com/container-platform/4.13/updating/updating-cluster-cli.html

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:7398 advisory.

    Red Hat OpenShift Container Platform is Red Hat's cloud computing     Kubernetes application platform solution designed for on-premise or private     cloud deployments.

    This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.12.0. See the following     advisory for the container images for this release:

    https://access.redhat.com/errata/RHSA-2022:7399

    Security Fix(es):

    * go-yaml: Denial of Service in go-yaml (CVE-2021-4235)
    * golang: net/http/httputil: ReverseProxy should not forward unparseable query parameters (CVE-2022-2880)
    * kubernetes: Unauthorized read of Custom Resources (CVE-2022-3162)
    * kube-apiserver: Aggregated API server can cause clients to be redirected (SSRF) (CVE-2022-3172)
    * golang: net/http: handle server errors after sending GOAWAY (CVE-2022-27664)
    * golang: compress/gzip: stack exhaustion in Reader.Read (CVE-2022-30631)
    * golang: net/http/httputil: NewSingleHostReverseProxy - omit X-Forwarded-For not working (CVE-2022-32148)
    * golang: regexp/syntax: limit memory used by parsing regexps (CVE-2022-41715)
    * cri-o: incorrect handling of the supplementary groups (CVE-2022-2995)
    * OpenShift: Missing HTTP Strict Transport Security (CVE-2022-3259)
    * cri-o: Security regression of CVE-2022-27652 (CVE-2022-3466)
    * golang: math/big: decoding big.Float and big.Rat types can panic if the encoded message is too short,     potentially allowing a denial of service (CVE-2022-32189)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    All OpenShift Container Platform 4.12 users are advised to upgrade to these updated packages and images     when they are available in the appropriate release channel. To check for available updates, use the     OpenShift Console or the CLI oc command. Instructions for upgrading a cluster are available at     https://docs.openshift.com/container-platform/4.12/updating/updating-cluster-cli.html

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

ID	Name	Product	Family	Published	Updated	Severity
189426	RHCOS 4 : OpenShift Container Platform 4.13.0 (RHSA-2023:1325)	Nessus	Red Hat Local Security Checks	1/24/2024	1/24/2024	critical
189448	RHCOS 4 : OpenShift Container Platform 4.12.0 (RHSA-2022:7398)	Nessus	Red Hat Local Security Checks	1/24/2024	1/24/2024	high
194235	RHEL 8 / 9 : OpenShift Container Platform 4.13.0 (RHSA-2023:1325)	Nessus	Red Hat Local Security Checks	4/28/2024	6/4/2024	critical
194196	RHEL 8 / 9 : OpenShift Container Platform 4.12.0 (RHSA-2022:7398)	Nessus	Red Hat Local Security Checks	4/28/2024	6/4/2024	high

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