CVE-2013-4436 SaltStack MITM SSH attack in salt-ssh
Salt-ssh fails to validate SSH host keys by default, allowing remote attackers to perform man-in-the-middle attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-4436?
CVE-2013-4436 is a critical vulnerability in Saltstack Salt, published on 5 Nov 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The default configuration for salt-ssh in Salt (aka SaltStack) 0.17.0 does not validate the SSH host key of requests, which allows remote attackers to have unspecified impact via a man-in-the-middle (MITM) attack.
Weakness: CWE-20
Which versions are affected by CVE-2013-4436?
3 open source packages ship an affected version, including salt. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
salt PyPI | From 0.17.0 | 0.17.1 |
salt PyPI | From 0.17.0 | 0.17.1 |
salt PyPI | From 0.17.0 | 0.17.1 |
Products include Saltstack Salt.
How do I fix CVE-2013-4436?
Upgrade salt to 0.17.1 or later.
Is CVE-2013-4436 being exploited?
There is no known exploitation of CVE-2013-4436 in the wild and no public exploit code.
Other vulnerabilities in Saltstack Salt
- CVE-2013-4437 SaltStack insecurely uses /tmp
- CVE-2013-6617 SaltStack Privilege Escalation vulnerability
- CVE-2021-33226 Code injection in n/a
- CVE-2021-25315 salt-api unauthenticated remote code execution
- CVE-2018-15751 SaltStack Salt Remote command execution and incorrect access control when using salt-api
Sources
Also known as GHSA-f22j-37jj-cxw9, PYSEC-2013-26.