Bug 1219619 (CVE-2023-7216) - VUL-0: CVE-2023-7216: cpio: extraction allows symlinks which enables Remote Command Execution
Summary: VUL-0: CVE-2023-7216: cpio: extraction allows symlinks which enables Remote C...
Status: RESOLVED INVALID
Alias: CVE-2023-7216
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Major
Target Milestone: ---
Assignee: Danilo Spinella
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/393036/
Whiteboard: CVSSv3.1:SUSE:CVE-2023-7216:8.8:(AV:N...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-02-06 10:54 UTC by SMASH SMASH
Modified: 2024-04-25 14:55 UTC (History)
2 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description SMASH SMASH 2024-02-06 10:54:17 UTC 
A path traversal vulnerability was found in the CPIO utility. This issue could allow a remote unauthenticated attacker to trick a user into opening a specially crafted archive. During the extraction process, the archiver could follow symlinks outside of the intended directory, which could be utilized to run arbitrary commands on the target system.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-7216
https://bugzilla.redhat.com/show_bug.cgi?id=2249901
https://www.cve.org/CVERecord?id=CVE-2023-7216
https://access.redhat.com/security/cve/CVE-2023-7216
Comment 1 Thomas Leroy 2024-02-06 10:55:36 UTC 
I don't see any fix upstream.

I triggered the path traversal on:
- SUSE:SLE-15-SP4:Update
- SUSE:ALP:Source:Standard:1.0
- openSUSE:Factory
Comment 5 Marcus Meissner 2024-04-25 14:55:58 UTC 
https://lists.gnu.org/archive/html/bug-cpio/2024-03/msg00000.html


>       First of all, I would like to confirm with you, do you accept
>       CVE-2023-7216? Is CVE-2023-7216 a bug or is it the default
>       behavior of cpio software?

It is a normal behavior.  Please use the --no-absolute-filenames option
to avoid it, if it is not desired.

Regards,
Sergey