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Vulnerability CVE-2020-28007
Published: 2021-05-06
| 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. |
Type:
CWE-59 (Improper Link Resolution Before File Access ('Link Following'))
CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)
| CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
7.2/10 |
10/10 |
3.9/10 |
| Exploit range |
Attack complexity |
Authentication |
Local |
Low |
No required |
| Confidentiality impact |
Integrity impact |
Availability impact |
Complete |
Complete |
Complete |
References: |
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28007-LFDIR.txt
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