Bundler prior to 2.1.0 uses a predictable path in /tmp/, created with insecure permissions as a storage location for gems, if locations under the user's home directory are not available. If Bundler is used in a scenario where the user does not have a writable home directory, an attacker could place malicious code in this directory that would be later loaded and executed.

The remote host is affected by the vulnerability described in GLSA-202408-22 (Bundler: Multiple Vulnerabilities)

    Multiple vulnerabilities have been discovered in Bundler. Please review the CVE identifiers referenced     below for details.

Tenable has extracted the preceding description block directly from the Gentoo 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 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched.

  - rubygem-bundler: Insecure permissions on directory in /tmp/ allows for execution of malicious code     (CVE-2019-3881)

Note that Nessus has not tested for this issue but has instead relied on the package manager's report that the package is installed.

This plugin has been deprecated as it does not adhere to established standards for this style of check.

The remote Ubuntu 18.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-4870-1 advisory.

    It was discovered that Bundler incorrectly created directories with insecure permissions in /tmp. An     attacker could write malicious libraries to this location for later execution.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2021:2588 advisory.

    * rubygem-bundler: Insecure permissions on directory in /tmp/ allows for execution of malicious code     (CVE-2019-3881)

    * ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch? (CVE-2019-15845)

    * ruby: Regular expression denial of service vulnerability of WEBrick's Digest authentication     (CVE-2019-16201)

    * ruby: Code injection via command argument of Shell#test / Shell#[] (CVE-2019-16255)

    * rubygem-json: Unsafe object creation vulnerability in JSON (CVE-2020-10663)

    * ruby: BasicSocket#read_nonblock method leads to information disclosure (CVE-2020-10933)

    * ruby: Potential HTTP request smuggling in WEBrick (CVE-2020-25613)

    * ruby: XML round-trip vulnerability in REXML (CVE-2021-28965)

    * ruby: HTTP response splitting in WEBrick (CVE-2019-16254)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:2230 advisory.

    Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text     files and to perform system management tasks.

    The following packages have been upgraded to a later upstream version: rh-ruby26-ruby (2.6.7).
    (BZ#1701182)

    Security Fix(es):

    * rubygem-bundler: Insecure permissions on directory in /tmp/ allows for execution of malicious code     (CVE-2019-3881)

    * ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch? (CVE-2019-15845)

    * ruby: Regular expression denial of service vulnerability of WEBrick's Digest authentication     (CVE-2019-16201)

    * ruby: Code injection via command argument of Shell#test / Shell#[] (CVE-2019-16255)

    * rubygem-json: Unsafe object creation vulnerability in JSON (CVE-2020-10663)

    * ruby: BasicSocket#read_nonblock method leads to information disclosure (CVE-2020-10933)

    * ruby: Potential HTTP request smuggling in WEBrick (CVE-2020-25613)

    * ruby: XML round-trip vulnerability in REXML (CVE-2021-28965)

    * ruby: HTTP response splitting in WEBrick (CVE-2019-16254)

    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.

    Bug Fix(es):

    * rh-ruby26-ruby: Resolv::DNS: timeouts if multiple IPv6 name servers are given and address contains     leading zero [rhscl-3] (BZ#1950331)

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Software Collections 3.7 Release     Notes linked from the References section.

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 Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2021:2588 advisory.

  - Bundler prior to 2.1.0 uses a predictable path in /tmp/, created with insecure permissions as a storage     location for gems, if locations under the user's home directory are not available. If Bundler is used in a     scenario where the user does not have a writable home directory, an attacker could place malicious code in     this directory that would be later loaded and executed. (CVE-2019-3881)

  - Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 mishandles path checking within     File.fnmatch functions. (CVE-2019-15845)

  - WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a     regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server     that uses DigestAuth to the Internet or a untrusted network. (CVE-2019-16201)

  - Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a     program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to     insert a newline character to split a header, and inject malicious content to deceive clients. NOTE: this     issue exists because of an incomplete fix for CVE-2017-17742, which addressed the CRLF vector, but did not     address an isolated CR or an isolated LF. (CVE-2019-16254)

  - Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows code injection if the first     argument (aka the command argument) to Shell#[] or Shell#test in lib/shell.rb is untrusted data. An     attacker can exploit this to call an arbitrary Ruby method. (CVE-2019-16255)

  - The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through     2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not     rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead     to creation of a malicious object within the interpreter, with adverse effects that are application-     dependent. (CVE-2020-10663)

  - An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls     BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit     the requested size, but no data is copied. Thus, the buffer string provides the previous value of the     heap. This may expose possibly sensitive data from the interpreter. (CVE-2020-10933)

  - An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a     simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An     attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header     check), which may lead to an HTTP Request Smuggling attack. (CVE-2020-25613)

  - The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1 does not     properly address XML round-trip issues. An incorrect document can be produced after parsing and     serializing. (CVE-2021-28965)

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

An update of the rubygem package has been released.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-2588 advisory.

    ruby     [2.6.7-107]
    - Upgrade to Ruby 2.6.7.
      Resolves: rhbz#1952627
    - Resolv::DNS: timeouts if multiple IPv6 name servers are given an address       containing leading zero       Resolves: rhbz#1954968
    - Fix: Rubygem-bundler: Don't use insecure tmp directory as home       allows for execution of malicious code.
      Resolves: rhbz#1954969

Tenable has extracted the preceding description block directly from the Oracle 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 CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:2588 advisory.

  - ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch? (CVE-2019-15845)

  - ruby: Regular expression denial of service vulnerability of WEBrick's Digest authentication     (CVE-2019-16201)

  - ruby: HTTP response splitting in WEBrick (CVE-2019-16254)

  - ruby: Code injection via command argument of Shell#test / Shell#[] (CVE-2019-16255)

  - rubygem-bundler: Insecure permissions on directory in /tmp/ allows for execution of malicious code     (CVE-2019-3881)

  - rubygem-json: Unsafe object creation vulnerability in JSON (CVE-2020-10663)

  - ruby: BasicSocket#read_nonblock method leads to information disclosure (CVE-2020-10933)

  - ruby: Potential HTTP request smuggling in WEBrick (CVE-2020-25613)

  - ruby: XML round-trip vulnerability in REXML (CVE-2021-28965)

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:2588 advisory.

    Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text     files and to perform system management tasks.

    The following packages have been upgraded to a later upstream version: ruby (2.6.7). (BZ#1952627)

    Security Fix(es):

    * rubygem-bundler: Insecure permissions on directory in /tmp/ allows for execution of malicious code     (CVE-2019-3881)

    * ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch? (CVE-2019-15845)

    * ruby: Regular expression denial of service vulnerability of WEBrick's Digest authentication     (CVE-2019-16201)

    * ruby: Code injection via command argument of Shell#test / Shell#[] (CVE-2019-16255)

    * rubygem-json: Unsafe object creation vulnerability in JSON (CVE-2020-10663)

    * ruby: BasicSocket#read_nonblock method leads to information disclosure (CVE-2020-10933)

    * ruby: Potential HTTP request smuggling in WEBrick (CVE-2020-25613)

    * ruby: XML round-trip vulnerability in REXML (CVE-2021-28965)

    * ruby: HTTP response splitting in WEBrick (CVE-2019-16254)

    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.

    Bug Fix(es):

    * Resolv::DNS: ruby:2.6/ruby: timeouts if multiple IPv6 name servers are given and address contains     leading zero [rhel-8] (BZ#1954968)

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.

Gitlab reports :

Ability to steal a user's API access token through GitLab Pages

Prometheus denial of service via HTTP request with custom method

Unauthorized user is able to access private repository information under specific conditions

Regular expression denial of service in NuGet API

Regular expression denial of service in package uploads

Update curl dependency

CVE-2019-3881 mitigation

This update for rubygem-bundler fixes the following issue :

  - CVE-2019-3881: Fixed insecure permissions on a directory     in /tmp/ that allowed malicious code execution     (bsc#1143436).

This update was imported from the SUSE:SLE-15:Update update project.

This update for rubygem-bundler fixes the following issue :

CVE-2019-3881: Fixed insecure permissions on a directory in /tmp/ that allowed malicious code execution (bsc#1143436).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
205347	GLSA-202408-22 : Bundler: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	high
198702	RHEL 8 : 2.5_rubygem-bundler (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	high
195781	RHEL 8 : rubygem-bundler (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high
183182	Ubuntu 18.04 ESM : Bundler vulnerability (USN-4870-1)	Nessus	Ubuntu Local Security Checks	high
179413	AlmaLinux 8 : ruby:2.6 (ALSA-2021:2588)	Nessus	Alma Linux Local Security Checks	high
165130	RHEL 7 : rh-ruby26-ruby (RHSA-2021:2230)	Nessus	Red Hat Local Security Checks	high
157798	Rocky Linux 8 : ruby:2.6 (RLSA-2021:2588)	Nessus	Rocky Linux Local Security Checks	high
151947	Photon OS 4.0: Rubygem PHSA-2021-4.0-0060	Nessus	PhotonOS Local Security Checks	high
151449	Oracle Linux 8 : ruby:2.6 (ELSA-2021-2588)	Nessus	Oracle Linux Local Security Checks	high
151146	CentOS 8 : ruby:2.6 (CESA-2021:2588)	Nessus	CentOS Local Security Checks	high
151143	RHEL 8 : ruby:2.6 (RHSA-2021:2588)	Nessus	Red Hat Local Security Checks	high
144815	FreeBSD : Gitlab -- multiple vulnerabilities (a2a2b34d-52b4-11eb-87cb-001b217b3468)	Nessus	FreeBSD Local Security Checks	high
138701	openSUSE Security Update : rubygem-bundler (openSUSE-2020-861)	Nessus	SuSE Local Security Checks	high
138681	openSUSE Security Update : rubygem-bundler (openSUSE-2020-803)	Nessus	SuSE Local Security Checks	high
138542	SUSE SLED15 / SLES15 Security Update : rubygem-bundler (SUSE-SU-2020:1582-2)	Nessus	SuSE Local Security Checks	high
137606	SUSE SLED15 / SLES15 Security Update : rubygem-bundler (SUSE-SU-2020:1582-1)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2019-3881

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Tenable Plugins

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