CVE-2020-28407 Path traversal in n/a
A local attacker can overwrite arbitrary files via a symlink attack on temporary files in the swtpm TPM emulator.
- 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-2020-28407?
CVE-2020-28407 is a high-severity path traversal vulnerability in n/a, published on 3 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In swtpm before 0.4.2 and 0.5.x before 0.5.1, a local attacker may be able to overwrite arbitrary files via a symlink attack against a temporary file such as TMP2-00.permall.
Weakness: CWE-59
Which versions are affected by CVE-2020-28407?
It affects 1 product.
Linux distribution packages (1)
swtpm openSUSE:Tumbleweed | All versions | 0.6.1-1.1 |
Products include Swtpm Project Swtpm.
How do I fix CVE-2020-28407?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-28407 being exploited?
There is no known exploitation of CVE-2020-28407 in the wild and no public exploit code.
Sources
Also known as GHSA-52x8-2f4w-q8mm, OESA-2022-1741, openSUSE-SU-2024:11416-1.