Known exploited vulnerability
CVE-2020-16846
The short answer
CVE-2020-16846 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2021-11-03: attackers are using it, so patch it first. Fixed versions are published for salt (2015.8.13, 2016.3.8, 2016.11.10).
What it is
An issue was discovered in SaltStack Salt through 3002. Sending crafted web requests to the Salt API, with the SSH client enabled, can result in shell injection.
Weakness: CWE-78.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Nov 3, 2021
Federal due date May 3, 2022
EPSS, next 30 days
100%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected packages and fixed versions
| Package | Ecosystem | Fixed in | Advisory |
|---|---|---|---|
| salt | PyPI | 2015.8.13, 2016.3.8, 2016.11.10, 2017.7.8, 2018.3.5, 2019.2.6, 3000.4, 3001.2 | GHSA-qr38-h96j-2j3w |
Is it in your code? Drop your lockfile into the free vulnerability check, or let vulnerability watch check your repository every day and open the upgrade as a pull request.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- github.com/saltstack/salt/releases Release Notes
- lists.debian.org/debian-lts-announce/2020/12/msg00007.html Mailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/01/msg00000.html Mailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TPOGB2F6XUAIGFDTOCQDNB2VIXFXHWMA/ Release Notes
- security.gentoo.org/glsa/202011-13 Third Party Advisory
- www.debian.org/security/2021/dsa-4837 Mailing ListThird Party Advisory
- www.saltstack.com/blog/on-november-3-2020-saltstack-publicly-disclosed-three-new-cves/ Broken LinkVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-20-1379/ Third Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-1380/ Third Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-1381/ Third Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-1382/ Third Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-1383/ Third Party AdvisoryVDB Entry
Questions
Is CVE-2020-16846 being exploited?
Yes. CISA added CVE-2020-16846 to its Known Exploited Vulnerabilities catalog on 2021-11-03, with a federal remediation due date of 2022-05-03.
How do I fix CVE-2020-16846?
Upgrade to a fixed version: salt (PyPI) 2015.8.13 or 2016.3.8 or 2016.11.10 or 2017.7.8 or 2018.3.5 or 2019.2.6 or 3000.4 or 3001.2. CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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