RCE in Saltstack Salt
CVE-2020-28243
An issue was discovered in SaltStack Salt before 3002.5. The minion's restartcheck is vulnerable to command injection via a crafted process name. This allows for a local privilege escalation by any user able to create a files on the minion in a non-blacklisted directory.
Vulnerability class: Command Injection (OS Command Injection)
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: 0.043 (90.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000
Affected products
- Saltstack Salt
- Debian Linux — versions 9.0, 10.0, 11.0
- Fedoraproject Fedora — versions 32, 33, 34
Weakness classification (CWE)
Public proof-of-concept exploits
References
- saltproject.io/security_announcements/active-saltstack-cve-release-2021-feb-25/ (Vendor Advisory)
- github.com/stealthcopter/CVE-2020-28243 (Exploit, Third Party Advisory)
- sec.stealthcopter.com/cve-2020-28243/ (Exploit, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202103-01 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/11/msg00009.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2021/dsa-5011 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/01/msg00000.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-28243?
- CVE-2020-28243 is a high-severity vulnerability in Saltstack Salt, classified under Command Injection. CVSS score: 7.8/10. Published 2021-02-27.
- How severe is CVE-2020-28243?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-28243 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.