Privilege escalation in Sympa
CVE-2020-26880
Sympa through 6.2.57b.2 allows a local privilege escalation from the sympa user account to full root access by modifying the sympa.conf configuration file (which is owned by sympa) and parsing it through the setuid sympa_newaliases-wrapper executable.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (26.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Sympa — versions 6.2.57
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 32, 33, 34
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/sympa-community/sympa/issues/1009 (Third Party Advisory)
- github.com/sympa-community/sympa/issues/943 (Third Party Advisory)
- github.com/sympa-community/sympa/issues/943 (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/11/msg00015.html (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-26880?
- CVE-2020-26880 is a high-severity vulnerability in Sympa, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2020-10-07.
- How severe is CVE-2020-26880?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-26880 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.