Detections
Analytics
Amazon Linux AMI : emacs (ALAS-2023-1712)
critical Nessus Plugin ID 173940
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Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
The version of emacs installed on the remote host is prior to 24.3-20.25. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1712 advisory.- GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a victim may use the ctags * command (suggested in the ctags documentation) in a situation where the current working directory has contents that depend on untrusted input.
(CVE-2022-45939)
- GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the etags program. For example, a victim may use the etags -u * command (suggested in the etags documentation) in a situation where the current working directory has contents that depend on untrusted input. (CVE-2022-48337)
- An issue was discovered in GNU Emacs through 28.2. htmlfontify.el has a command injection vulnerability.
In the hfy-istext-command function, the parameter file and parameter srcdir come from external input, and parameters are not escaped. If a file name or directory name contains shell metacharacters, code may be executed. (CVE-2022-48339)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update emacs' to update your system.See Also
https://alas.aws.amazon.com/ALAS-2023-1712.html
https://alas.aws.amazon.com/cve/html/CVE-2022-45939.html
https://alas.aws.amazon.com/cve/html/CVE-2022-48337.html
Plugin Details
Severity: Critical
ID: 173940
File Name: ala_ALAS-2023-1712.nasl
Version: 1.0
Type: local
Agent: unix
Published: 4/6/2023
Updated: 4/6/2023
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2022-48337
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:emacs, p-cpe:/a:amazon:linux:emacs-common, p-cpe:/a:amazon:linux:emacs-debuginfo, p-cpe:/a:amazon:linux:emacs-el, cpe:/o:amazon:linux
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 3/30/2023
Vulnerability Publication Date: 11/28/2022