Incorrect default permissions in OpenOffice - CVE-2021-28129
Published: October 11, 2021
Vulnerability identifier: #VU57211
CSH Severity: Low
CVSS v4: 7.2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-28129
CWE-ID: CWE-276
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect default permissions. The DEB package did not install using root, but instead used a userid and groupid of 500. A local user with the same identifier can escalate privileges on the system.
Affected software
OpenOffice
How to mitigate CVE-2021-28129
Install updates from vendor's website.
OpenOffice - update to 4.1.9
External References
- https://lists.apache.org/thread.html/rc9090ab48b4699494b63b35cd6d7414c52d665ecae12add3cdc56c9b%40%3Cusers.openoffice.apache.org%3E
- https://lists.apache.org/thread.html/rc9090ab48b4699494b63b35cd6d7414c52d665ecae12add3cdc56c9b@%3Cusers.openoffice.apache.org%3E
- https://lists.apache.org/thread.html/r9e72234dd662280fa1a3cca6164d3470a1dbc0d8e53e48ba27f787ce@%3Cannounce.apache.org%3E
- http://www.openwall.com/lists/oss-security/2021/10/07/5