Incorrect default permissions in Nullsoft Scriptable Install System (NSIS) - CVE-2023-37378
Published: August 21, 2023
Vulnerability identifier: #VU79794
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-37378
CWE-ID: CWE-276
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Nullsoft Scriptable Install System (NSIS)
Nullsoft Scriptable Install System (NSIS)
Software vendor:
Nullsoft
Nullsoft
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect default permissions for an uninstaller directory. A local user with access to the system can view contents of files and directories or modify them.
Remediation
Install updates from vendor's website.
External links
- https://github.com/kichik/nsis/commit/281e2851fe669d10e0650fc89d0e7fb74a598967
- https://sourceforge.net/p/nsis/news/2023/07/nsis-309-released/
- https://nsis.sourceforge.io/Docs/AppendixF.html#v3.09
- https://github.com/kichik/nsis/commit/409b5841479c44fbf33a6ba97c1146e46f965467
- https://github.com/kichik/nsis/commit/c40cf78994e74a1a3a381a850c996b251e3277c0
- http://sf.net/p/nsis/bugs/1296
- https://lists.debian.org/debian-lts-announce/2023/07/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A65FBUMHLZ7GBV3VDKUB5EK3A7X2UUWK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OZPAAU57IA3NP6UOUXNBUQBAYK3JB2IM/