Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a relat
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in 1.4.13
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Archive_Tar, a PHP library for creating and extracting tar archives, is affected by this vulnerability. An attacker could craft a malicious archive that writes files outside the intended extraction directory, potentially overwriting sensitive files on the system.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- n/a n/a
Version range not reported
- pear/archive_tarPackagist
fixed in 1.4.13
References 10
GitHub · pear/Archive_Tar
drupal.org
security.gentoo.org
lists.fedoraproject.org
- archives/list/package-announce@lists.fedoraproject.org/message/YKD5WEFA4WT6AVTMRAYBNXZNLWZHM7FH
- archives/list/package-announce@lists.fedoraproject.org/message/FOZNK4FIIV7FSFCJNNFWMJZTTV7NFJV2
- archives/list/package-announce@lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N
- archives/list/package-announce@lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR
debian.org
Questions about CVE-2020-36193
What does this mean?
Archive_Tar's Tar.php does not properly check symbolic links when writing extracted files. A crafted archive can therefore write files outside the intended directory, which is a directory traversal.Source: security.gentoo.org, lists.fedoraproject.org
Am I affected, and how do I check?
The listed range is pear/archive_tar through 1.4.11. One listed package, dev-php/PEAR-Archive_Tar, is described as affected on all architectures below 1.4.12. To check an installed copy, look at the Archive_Tar version reported by PEAR or your package manager.Source: security.gentoo.org, lists.fedoraproject.org
What should I do about it?
Upgrade Archive_Tar to 1.4.13, the fixed version in the product range data. The condition text gives 1.4.12 as the cutoff, so confirm the exact target against the advisory before choosing a version.Source: security.gentoo.org, lists.fedoraproject.org
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-08-25, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data