Home/CVE/In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environmen
CVE

CVE-2023-22809

In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environmen

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.

HIGH · CVSS 7.8 EPSS 0.39861
Act now
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 3% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules9 YARA rules0
⬡

Weakness Classification

CWE-269Improper Privilege Management
CWE-269Improper Privilege Management
▤

Affected Products & Versions

5
sudo project sudo>= 1.8.0 and < 1.9.12
sudo project sudoall versions
debian linuxall versions
fedoraproject fedoraall versions
apple macos< 13.4
⚠

Public Exploits & PoCs

6
localsudo 1.8.0 to 1.9.12p1 - Privilege Escalation2023-04-03
pocpacketstormsecurity.com · sudo-1.9.12p1-Privilege-Escalation.htmlpacketstormsecurity.com
pocpacketstormsecurity.com · Sudoedit-Extra-Arguments-Privilege-Escalation.htmlpacketstormsecurity.com
pocpacketstormsecurity.com · Cisco-ThousandEyes-Enterprise-Agent-Virtual-Appliance-Arb...packetstormsecurity.com
pocwww.sudo.ws · sudoedit_anywww.sudo.ws
pocwww.synacktiv.com · sudo-CVE-2023-22809.pdfwww.synacktiv.com
◈

Sigma Hunt Rules

9
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productlowLinux Sudo Chroot Execution
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Jan 2023 · 05:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

26
msrcCVE-2023-22809
suse-csafopenSUSE-SU-2024:12638-1
usnUSN-5811-3
suse-csafSUSE-SU-2023:0114-1
suse-csafSUSE-SU-2023:0115-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2023/Aug/21Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/01/19/1ExploitMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00012.htmlMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2QDGFCGAV5QRJCE6IXRXIS4XJHS57DDH/Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4YNBTTKTRT2ME3NTSXAPTOKYUE47XHZ/Mailing List
https://security.gentoo.org/glsa/202305-12Third Party Advisory
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