A vulnerability has been found in tcpdf up to 6.2.21 and classified as critical. This vulnerability affects an unknown part of the component phar:/ Wrapper. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in TCPDF before 6.2.22. Attackers can trigger deserialization of arbitrary data via the phar:// wrapper.

The bug was discovered 09/14/2018. The weakness was presented 09/14/2018 (GitHub Repository). The advisory is available at github.com. This vulnerability was named CVE-2018-17057 since 09/14/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371725 (TCPDF phar deserialization Remote Code Execution Vulnerability).

Upgrading to version 6.2.22 eliminates this vulnerability.

Additional details are provided at seclists.org.

Productinfo

Name

• tcpdf

Version

• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6
• 6.2.7
• 6.2.8
• 6.2.9
• 6.2.10
• 6.2.11
• 6.2.12
• 6.2.13
• 6.2.14
• 6.2.15
• 6.2.16
• 6.2.17
• 6.2.18
• 6.2.19
• 6.2.20
• 6.2.21

License

• open-source

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CPE 2.2info

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