CVE-2020-28007 - log back

CVE-2020-28007 edited at 06 May 2021 17:13:19
Type
- Privilege escalation
+ Arbitrary file overwrite
Description
- A security issue has been found in Exim before version 4.94.2 that allows for a local privilege escalation from user "exim" to root using a link attack in Exim's log directory.
+ 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.
CVE-2020-28007 edited at 04 May 2021 14:20:45
Type
- Information disclosure
+ Privilege escalation
Description
- A security issue has been found in Exim before version 4.94.2 that allows for a link attack in Exim's log directory.
+ A security issue has been found in Exim before version 4.94.2 that allows for a local privilege escalation from user "exim" to root using a link attack in Exim's log directory.
CVE-2020-28007 edited at 04 May 2021 14:15:20
References
https://www.openwall.com/lists/oss-security/2021/05/04/6
https://www.qualys.com/2021/05/04/21nails/21nails.txt
+ https://git.exim.org/exim.git/commitdiff/93e9a18fbf09deb59bd133986f4c89aeb2d2d86a
CVE-2020-28007 edited at 04 May 2021 13:51:03
Severity
- Unknown
+ Medium
Remote
- Unknown
+ Local
Type
- Unknown
+ Information disclosure
Description
+ A security issue has been found in Exim before version 4.94.2 that allows for a link attack in Exim's log directory.
References
+ https://www.openwall.com/lists/oss-security/2021/05/04/6
+ https://www.qualys.com/2021/05/04/21nails/21nails.txt
Notes
CVE-2020-28007 created at 04 May 2021 13:46:53