CVE-2020-28949 · netVigilance record NV22-0491
PEAR Archive_Tar Deserialization of Untrusted Data
past due
What to do
Apply updates per vendor instructions.
CISA deadline 2022-09-15 · passed 3 years 11 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
PEAR Archive_Tar. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-74.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 3 years 11 months ago
Sources
- NVD entry for CVE-2020-28949 nvd.nist.gov/vuln/detail/CVE-2020-28949
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- pear.php.net pear.php.net/bugs/bug.php?id=27002
- drupal.org www.drupal.org/sa-core-2020-013
- access.redhat.com access.redhat.com/security/cve/cve-2020-28949
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2020-28949