CVE-2020-28243 SaltStack Salt command injection via a crafted process name
Local attackers can achieve privilege escalation and execute arbitrary commands via crafted process names in SaltStack Salt.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-28243?
CVE-2020-28243 is a high-severity command injection vulnerability in Debian Debian Linux, published on 27 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-77
Which versions are affected by CVE-2020-28243?
19 open source packages ship an affected version, including salt. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
salt PyPI | All versions | 2015.8.10, 2015.8.13, 2016.3.4, 2016.3.6, 2016.3.8, 2016.11.3, 2016.11.5, 2016.11.10, 2017.7.8, 2019.2.0rc1, 2019.2.5, 2019.2.8, 3000.6, 3001.4, 3002.5 |
salt PyPI | All versions | 2015.8.13 |
salt PyPI | All versions | 2015.8.13 |
salt PyPI | From 2016.11.7 | 2016.11.10 |
salt PyPI | From 2016.11.7 | 2016.11.10 |
salt PyPI | From 2016.3.0 | 2016.11.5 |
13 more packages
salt PyPI | From 2016.3.0 | 2016.11.5 |
salt PyPI | From 2017.5.0 | 2017.7.8 |
salt PyPI | From 2017.5.0 | 2017.7.8 |
salt PyPI | From 2018.2.0 to 2018.3.5 | None |
salt PyPI | From 2018.2.0 to 2018.3.5 | None |
salt PyPI | From 2019.2.0 | 2019.2.8 |
salt PyPI | From 2019.2.0 | 2019.2.8 |
salt PyPI | From 3000 | 3000.7 |
salt PyPI | From 3000 | 3000.7 |
salt PyPI | From 3001 | 3001.5 |
salt PyPI | From 3001 | 3001.5 |
salt PyPI | From 3002 | 3002.3 |
salt PyPI | From 3002 | 3002.3 |
Products include Debian Debian Linux, Fedoraproject Fedora, Saltstack Salt.
How do I fix CVE-2020-28243?
Upgrade salt to a fixed version for your release line: 2015.8.10, 2015.8.13, 2016.3.4 or 2016.3.6.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2020-28243 being exploited?
There is no known exploitation of CVE-2020-28243 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as GHSA-phhw-3wc9-8q75, PYSEC-2021-73, UBUNTU-CVE-2020-28243.