CVEvulnerability

CVE-2020-28007

7.8 HIGH Published 2021-05-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-05-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-59

Description

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.

Affected configurations

• exim exim (>= 4.00 < 4.94.2)

Related

Weakness · CWE (1)

  • CWE-59 Improper Link Resolution Before File Access weakness

References