CVE-2020-28948 Deserialization in n/a
Attackers can execute arbitrary code via deserialization in the Archive_Tar library by bypassing phar protocol filters.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-28948?
CVE-2020-28948 is a high-severity unsafe deserialization vulnerability in Debian Debian Linux, published on 19 Nov 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Archive_Tar through 1.4.10 allows an unserialization attack because phar: is blocked but PHAR: is not blocked.
Weakness: CWE-502
Which versions are affected by CVE-2020-28948?
It affects 4 products.
Products include Debian Debian Linux, Drupal Drupal, Fedoraproject Fedora, Php Archive Tar.
How do I fix CVE-2020-28948?
Upgrade to a fixed version.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2020-28948 being exploited?
There is no known exploitation of CVE-2020-28948 in the wild and no public exploit code.
Public exploit code: 3 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as CLEANSTART-2024-WZ69963, DEBIAN-CVE-2020-28948, UBUNTU-CVE-2020-28948.