High severity · published Jan 18, 2023
CVE-2023-22809
In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a…
7.8
CVSS
55.4%
EPSS
No
On KEV
Description
In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to append arbitrary entries to the list of files to process. This can lead to privilege escalation. Affected versions are 1.8.0 through 1.9.12.p1. The problem exists because a user-specified editor may contain a "--" argument that defeats a protection mechanism, e.g., an EDITOR='vim -- /path/to/extra/file' value.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)55.4% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 13.4 · source: NVD
DL
Debian Linux · Debian
10.0; 11.0 · source: NVD
FE
Fedora · Fedoraproject
36; 37 · source: NVD
SU
Sudo · Sudo Project
1.8.0 before 1.9.12; 1.9.12; 1.9.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-22809
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-22809
Third Party Advisory
http://packetstormsecurity.com/files/171644/sudo-1.9.12p1-Privilege-Escalation.html
Third Party Advisory
http://packetstormsecurity.com/files/172509/Sudoedit-Extra-Arguments-Privilege-Escalation.html
Third Party Advisory
http://packetstormsecurity.com/files/174234/Cisco-ThousandEyes-Enterprise-Agent-Virtual-Appliance-Arbitrary-File-Modification.html
Mailing List
http://seclists.org/fulldisclosure/2023/Aug/21
Exploit
http://www.openwall.com/lists/oss-security/2023/01/19/1
Mailing List
https://lists.debian.org/debian-lts-announce/2023/01/msg00012.html
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