PT-2021-4106 · Unknown+1 · Pleaseedit+1
Matthias Gerstner
·
Published
2021-03-17
·
Updated
2022-07-12
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CVE-2021-31154
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
pleaseedit versions prior to 0.4
Description
The issue is related to the use of predictable temporary filenames in /tmp and the target directory. This allows a local attacker to gain full root privileges by staging a symlink attack. The vulnerability can be exploited to access confidential data, disrupt data integrity, and cause a denial of service.
Recommendations
For versions prior to 0.4, consider restricting access to the /tmp directory and the target directory to minimize the risk of exploitation. As a temporary workaround, avoid using the pleaseedit utility until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Link Following
Exposure of Resource to Wrong Sphere
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Related Identifiers
Affected Products
Ubuntu
Pleaseedit