RCE in Sa-Exim Project
CVE-2019-19920
sa-exim 4.2.1 allows attackers to execute arbitrary code if they can write a .cf file or a rule. This occurs because Greylisting.pm relies on eval (rather than direct parsing and/or use of the taint feature). This issue is similar to CVE-2018-11805.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.032 (86.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Sa-exim_project Sa-exim — versions 4.2.1
- Canonical Ubuntu_linux — versions 16.04
- Debian Debian_linux — versions 8.0, 9.0, 10.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Mailing List, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Mailing List, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19920?
- CVE-2019-19920 is a high-severity vulnerability in Sa-Exim Project, classified under OS Command Injection. CVSS score: 8.8/10. Published 2019-12-22.
- How severe is CVE-2019-19920?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2019-19920 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.