Vulnerability Details : CVE-2021-23239
Potential exploit
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.
Products affected by CVE-2021-23239
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
- cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*
- cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-23239
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-23239
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
1.9
|
LOW | AV:L/AC:M/Au:N/C:P/I:N/A:N |
3.4
|
2.9
|
NIST | |
|
2.5
|
LOW | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
1.0
|
1.4
|
NIST |
CWE ids for CVE-2021-23239
-
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-23239
-
https://lists.debian.org/debian-lts-announce/2022/11/msg00007.html
[SECURITY] [DLA 3181-1] sudo security updateMailing List;Third Party Advisory
-
https://www.sudo.ws/stable.html#1.9.5
Sudo Stable ReleaseRelease Notes;Vendor Advisory
-
https://security.netapp.com/advisory/ntap-20210129-0010/
January 2021 Sudo Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://security.gentoo.org/glsa/202101-33
sudo: Multiple vulnerabilities (GLSA 202101-33) — Gentoo securityThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EE42Y35SMJOLONAIBNYNFC7J44UUZ2Y6/
[SECURITY] Fedora 33 Update: sudo-1.9.5p1-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMY4VSSBIND7VAYSN6T7XIWJRWG4GBB3/
[SECURITY] Fedora 32 Update: sudo-1.9.5p1-1.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2021-23239
Bug 1180684 – VUL-0: CVE-2021-23239: sudo: Possible Dir Existence Test due to Race Condition in `sudoedit`Exploit;Issue Tracking;Third Party Advisory
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