CVE-2020-28007
published 2021-05-06CVE-2020-28007: 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…
PriorityP343high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.53%
40.8th percentile
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
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | exim4 | < exim4 4.94.2-1 (bookworm) | exim4 4.94.2-1 (bookworm) |
| exim | exim | >= 4.00 < 4.94.2 | 4.94.2 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv7.8HIGH
vendor_ubuntu9.8CRITICAL
vendor_debian7.8HIGH
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Ubuntu
Exim vulnerabilities
vendor_ubuntu·2021-05-06·CVSS 9.8
CVE-2020-28011 [CRITICAL] Exim vulnerabilities
Title: Exim vulnerabilities
Summary: Several security issues were fixed in Exim.
USN-4934-1 fixed several vulnerabilities in Exim. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
CVE-2020-28026 only affected Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that Exim contained multiple security issues. An attacker
could use these issues to cause a denial of service, execute arbitrary
code remotely, obtain sensitive information, or escalate local privileges.
Instructions: In general, a standard system update will make all the necessary changes.
Ubuntu
Exim vulnerabilities
vendor_ubuntu·2021-05-04
CVE-2020-28022 Exim vulnerabilities
Title: Exim vulnerabilities
Summary: Several security issues were fixed in Exim.
It was discovered that Exim contained multiple security issues. An attacker
could use these issues to cause a denial of service, execute arbitrary
code remotely, obtain sensitive information, or escalate local privileges.
Instructions: In general, a standard system update will make all the necessary changes.
Debian
CVE-2020-28007: exim4 - Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim ...
vendor_debian·2020·CVSS 7.8
CVE-2020-28007 [HIGH] CVE-2020-28007: exim4 - Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim ...
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.
Scope: local
bookworm: resolved (fixed in 4.94.2-1)
bullseye: resolved (fixed in 4.94.2-1)
forky: resolved (fixed in 4.94.2-1)
sid: resolved (fixed in 4.94.2-1)
trixie: resolved (fixed in 4.94.2-1)
GHSA
GHSA-x5m4-62f7-c437: Exim 4 before 4
ghsa_unreviewed·2022-05-24
CVE-2020-28007 [HIGH] CWE-59 GHSA-x5m4-62f7-c437: Exim 4 before 4
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.
OSV
CVE-2020-28007: Exim 4 before 4
osv·2021-05-06·CVSS 7.8
CVE-2020-28007 [HIGH] CVE-2020-28007: Exim 4 before 4
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.
No detection rules found.
No public exploits indexed.
2021-05-06
Published