CVE-2020-28972: debian debian_linux Improper Certificate Validation
CVSS: 5.9v3.1MediumModified
AliasesGHSA-w589-r335-4f55PYSEC-2021-74UBUNTU-CVE-2020-28972
Published 27-02-2021Last modified 04-08-2024
Vulnerability summary
CVE-2020-28972 is a medium (CVSS 5.9) Improper Certificate Validation vulnerability in debian debian_linux. EPSS estimates a 3.08% chance of exploitation in the next 30 days, higher than 87.5% of scored vulnerabilities.
CVSS score
5.9/10
010
Medium · v3.1 (NVD)EPSS score
3.08%
0%100%
Low · -0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 12 · Related 11Timeline
- 27-02-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In SaltStack Salt before 3002.5, authentication to VMware vcenter, vsphere, and esxi servers (in the vmware.py files) does not always validate the SSL/TLS certificate.
CVSS metrics
5 scores · 3 sources · 3 versionsHigh 8.2Preferred score · OSV · Pypi (Ecosystem advisory) · calculated from vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NSourcesSingle source
Medium 5.9Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NSourcesAll 3 agree
- OSV · PypiEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
3.08%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
-0.01 pp
From 3.09% on 21-09-2026
21-09-202621-10-2026
EPSS score3.08%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- debian_linuxEOL9.0 | 10.0 | 11.0
Fedoraproject1 product
- fedoraEOL32 | 33 | 34
PyPI1 product
- salt< 2015.8.13 | ≥ 2016.3.0, < 2016.11.5 | ≥ 2016.11.7, < 2016.11.10 | ≥ 2017.5.0, < 2017.7.8 | ≥ 2018.2.0, ≤ 2018.3.5 | ≥ 2019.2.0, < 2019.2.8 | ≥ 3000, < 3000.7 | ≥ 3001, < 3001.5 | ≥ 3002, < 3002.3 | ≥ 3002, < 3002.5
Saltstack1 product
- salt< 2015.8.10 | ≥ 2015.8.11, < 2015.8.13 | ≥ 2016.3.0, < 2016.3.4 | ≥ 2016.3.5, < 2016.3.6 | ≥ 2016.3.7, < 2016.3.8 | ≥ 2016.3.9, < 2016.11.3 | ≥ 2016.11.4, < 2016.11.5 | ≥ 2016.11.7, < 2016.11.10 | ≥ 2017.5.0, < 2017.7.8 | ≥ 2018.2.0, ≤ 2018.3.5 | ≥ 2019.2.0, < 2019.2.5 | ≥ 2019.2.6, < 2019.2.8 | ≥ 3000, < 3000.6 | ≥ 3001, < 3001.4 | ≥ 3002, < 3002.5
Ubuntu1 product
- saltAll versions (No fix recorded) | < 2015.8.8+ds-1ubuntu0.1+esm2 | < 2017.7.4+dfsg1-1ubuntu18.04.2+esm1
5 vendors · 5 products
References
29 links- saltproject.io/security_announcements/active-saltstack-cve-release-2021-feb-25/WEBREPORTVendor Advisory
Show all 29 references
- github.com/saltstack/saltPACKAGE