CVE-2024-28085: util-linux — Exploit & Fix

Description

wall in util-linux through 2.40, often installed with setgid tty permissions, allows escape sequences to be sent to other users' terminals through argv. (Specifically, escape sequences received from stdin are blocked, but escape sequences received from argv are not blocked.) There may be plausible scenarios where this leads to account takeover.

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CVSS v3.1 Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weakness Type (CWE)

CWE-150 CWE-150

Affected Products

Vendor	Product	Versions
kernel	util-linux	2.24 — 2.39.4
debian	debian_linux	All

References

Advisories & Patches

Exploits

http://www.openwall.com/lists/oss-security/2024/03/27/5 https://github.com/skyler-ferrante/CVE-2024-28085 https://people.rit.edu/sjf5462/6831711781/wall_2_27_2024.txt http://www.openwall.com/lists/oss-security/2024/03/27/5 https://github.com/skyler-ferrante/CVE-2024-28085 https://people.rit.edu/sjf5462/6831711781/wall_2_27_2024.txt

Other References

http://www.openwall.com/lists/oss-security/2024/03/27/6 http://www.openwall.com/lists/oss-security/2024/03/28/2 https://github.com/util-linux/util-linux/security/advisories/GHSA-xv2h-c6ww-mrjq https://lists.debian.org/debian-lts-announce/2024/04/msg00005.html https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/ https://security.netapp.com/advisory/ntap-20240531-0003/ https://www.openwall.com/lists/oss-security/2024/03/27/5 http://seclists.org/fulldisclosure/2024/Mar/35 http://www.openwall.com/lists/oss-security/2024/03/27/6 http://www.openwall.com/lists/oss-security/2024/03/28/2

Frequently Asked Questions

What is CVE-2024-28085? +

wall in util-linux through 2.40, often installed with setgid tty permissions, allows escape sequences to be sent to other users' terminals through argv. (Specifically, escape sequences received from stdin are blocked, but escape sequences received from argv are not blocked.) There may be plausible scenarios where this leads to account takeover. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2024-28085? +

CVE-2024-28085 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2024-28085? +

CVE-2024-28085 affects products from debian, kernel, specifically: debian_linux, util-linux. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-28085? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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