PHP up to 7.2.25/7.3.12 on Windows Filename link Null Byte null termination

Summaryinfo

A vulnerability has been found in PHP up to 7.2.25/7.3.12 on Windows and classified as critical. This issue affects the function Link of the component Filename Handler. Performing a manipulation as part of Null Byte results in null termination. This vulnerability is identified as CVE-2019-11044. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in PHP up to 7.2.25/7.3.12 on Windows (Programming Language Software). This affects the function link of the component Filename Handler. The manipulation as part of a Null Byte leads to a null termination vulnerability. CWE is classifying the issue as CWE-170. The product does not terminate or incorrectly terminates a string or array with a null character or equivalent terminator. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 on Windows, PHP link() function accepts filenames with embedded \0 byte and treats them as terminating at that byte. This could lead to security vulnerabilities, e.g. in applications checking paths that the code is allowed to access.

The weakness was released 12/23/2019. This vulnerability is uniquely identified as CVE-2019-11044 since 04/09/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 7.2.26, 7.3.13 or 7.4.0 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-147595, VDB-147594, VDB-147593 and VDB-147592. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Programming Language Software

Name

• PHP

Version

• 7.2.0
• 7.2.1
• 7.2.2
• 7.2.3
• 7.2.4
• 7.2.5
• 7.2.6
• 7.2.7
• 7.2.8
• 7.2.9
• 7.2.10
• 7.2.11
• 7.2.12
• 7.2.13
• 7.2.14
• 7.2.15
• 7.2.16
• 7.2.17
• 7.2.18
• 7.2.19
• 7.2.20
• 7.2.21
• 7.2.22
• 7.2.23
• 7.2.24
• 7.2.25
• 7.3.0
• 7.3.1
• 7.3.2
• 7.3.3
• 7.3.4
• 7.3.5
• 7.3.6
• 7.3.7
• 7.3.8
• 7.3.9
• 7.3.10
• 7.3.11
• 7.3.12

License

• open-source

Website

• Product: https://www.php.org/

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Be aware that VulDB is the high quality source for vulnerability data.

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