CVE-2023-22809
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 55.4% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 55.4% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 55.4% · EPSS, next 30 days
- Weakness
- CWE-269 · Improper privilege management
- Record status
- Modified
Affected
- Sudo Project Sudo < 1.9.12
- Sudo Project Sudo 1.9.12
- Debian Linux 10.0
- Debian Linux 11.0
- Fedoraproject Fedora 36
- Fedoraproject Fedora 37
- Apple macOS < 13.4
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-22809.md and follow it. Check whether this project is affected by CVE-2023-22809. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://www.sudo.ws/security/advisories/sudoedit_any/
- https://www.synacktiv.com/sites/default/files/2023-01/sudo-CVE-2023-22809.pdf
- https://www.sudo.ws/security/advisories/sudoedit_any/
- https://www.synacktiv.com/sites/default/files/2023-01/sudo-CVE-2023-22809.pdf
References
- http://packetstormsecurity.com/files/171644/sudo-1.9.12p1-Privilege-Escalation.html
- http://packetstormsecurity.com/files/172509/Sudoedit-Extra-Arguments-Privilege-Escalation.html
- http://packetstormsecurity.com/files/174234/Cisco-ThousandEyes-Enterprise-Agent-Virtual-Appliance-Arbitrary-File-Modification.html
- http://seclists.org/fulldisclosure/2023/Aug/21
- http://www.openwall.com/lists/oss-security/2023/01/19/1
- https://lists.debian.org/debian-lts-announce/2023/01/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2QDGFCGAV5QRJCE6IXRXIS4XJHS57DDH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4YNBTTKTRT2ME3NTSXAPTOKYUE47XHZ/
- https://security.gentoo.org/glsa/202305-12
- https://security.netapp.com/advisory/ntap-20230127-0015/
- https://support.apple.com/kb/HT213758
- https://www.debian.org/security/2023/dsa-5321
- https://www.sudo.ws/security/advisories/sudoedit_any/
- https://www.synacktiv.com/sites/default/files/2023-01/sudo-CVE-2023-22809.pdf
- http://packetstormsecurity.com/files/171644/sudo-1.9.12p1-Privilege-Escalation.html
- http://packetstormsecurity.com/files/172509/Sudoedit-Extra-Arguments-Privilege-Escalation.html
- http://packetstormsecurity.com/files/174234/Cisco-ThousandEyes-Enterprise-Agent-Virtual-Appliance-Arbitrary-File-Modification.html
- http://seclists.org/fulldisclosure/2023/Aug/21
- http://www.openwall.com/lists/oss-security/2023/01/19/1
- https://lists.debian.org/debian-lts-announce/2023/01/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2QDGFCGAV5QRJCE6IXRXIS4XJHS57DDH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4YNBTTKTRT2ME3NTSXAPTOKYUE47XHZ/
- https://security.gentoo.org/glsa/202305-12
- https://security.netapp.com/advisory/ntap-20230127-0015/
- https://support.apple.com/kb/HT213758