# CVE-2020-28949: A PEAR Archive_Tar bug is being used in attacks

Status: Being used now (CISA KEV, added 2022-08-25)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is PEAR Archive_Tar (CVE-2020-28949) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2020-28949. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
PEAR Archive_Tar allows an unserialization attack because phar: is blocked but PHAR: is not blocked. PEAR stands for PHP Extension and Application Repository and it is an open-source framework and distribution system for reusable PHP components with known usage in third-party products such as Drupal Core and Red Hat Linux.

## Sources
- https://pear.php.net/bugs/bug.php?id=27002, https://www.drupal.org/sa-core-2020-013, https://access.redhat.com/security/cve/cve-2020-28949
- https://nvd.nist.gov/vuln/detail/CVE-2020-28949
- https://nvd.nist.gov/vuln/detail/CVE-2020-28949

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.