CVE-2020-28007
HIGHExim 4.00-4.94.1 - Privilege Escalation via Symlink Attack in Log Directory
Title source: llmDescription
Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the log directory (owned by a non-root user), a symlink or hard link attack allows overwriting critical root-owned files anywhere on the filesystem.
References (1)
Core 1
Core References
Vendor Advisory x_refsource_misc
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28007-LFDIR.txt
Scores
CVSS v3
7.8
EPSS
0.0053
EPSS Percentile
40.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-59
Status
published
Products (1)
exim/exim
4.00 - 4.94.2
Published
May 06, 2021
Tracked Since
Feb 18, 2026