Home/CVE/The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existen
CVE

CVE-2021-23239

The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existen

The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudo_edit.c race condition in replacing a user-controlled directory by a symlink to an arbitrary path.

LOW · CVSS 2.5 EPSS 0.00094
Schedule remediation
  • Public exploit or PoC is available
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-59Improper Link Resolution Before File Access ('Link Following')
▤

Affected Products & Versions

7
sudo project sudo< 1.8.32
sudo project sudo>= 1.9.0 and < 1.9.5
netapp cloud backupall versions
netapp hci management nodeall versions
netapp solidfireall versions
fedoraproject fedoraall versions
debian linuxall versions
⚠

Public Exploits & PoCs

1
pocbugzilla.suse.com · show_bug.cgi?id=CVE-2021-23239bugzilla.suse.com
◈

Sigma Hunt Rules

1
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
▣

Scoring & Timeline

2.5
LOW · 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 NVD12 Jan 2021 · 09:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
⚑

Vendor Advisories

10
suse-csafopenSUSE-SU-2024:11413-1
suse-csafopenSUSE-SU-2021:0169-1
suse-csafopenSUSE-SU-2021:0170-1
suse-csafSUSE-SU-2021:0232-1
usnUSN-4705-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.debian.org/debian-lts-announce/2022/11/msg00007.htmlMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE42Y35SMJOLONAIBNYNFC7J44UUZ2Y6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMY4VSSBIND7VAYSN6T7XIWJRWG4GBB3/
https://security.gentoo.org/glsa/202101-33Third Party Advisory
https://security.netapp.com/advisory/ntap-20210129-0010/Third Party Advisory
https://www.sudo.ws/stable.html#1.9.5Release NotesVendor Advisory
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