Foxit Reader 9.0.0.29935 DataSubBlock GIF Image information disclosure

Summaryinfo

A vulnerability categorized as critical has been discovered in Foxit Reader 9.0.0.29935. Affected by this issue is some unknown functionality of the component DataSubBlock Handler. The manipulation as part of GIF Image results in information disclosure. This vulnerability was named CVE-2018-1179. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Foxit Reader 9.0.0.29935 (Document Reader Software). It has been classified as critical. Affected is an unknown functionality of the component DataSubBlock Handler. The manipulation as part of a GIF Image leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.0.0.29935. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DataSubBlock structures in GIF images. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-5490.

The bug was discovered 04/20/2018. The weakness was presented 05/17/2018 as confirmed security bulletin (Website). The advisory is shared for download at foxitsoftware.com. This vulnerability is traded as CVE-2018-1179 since 12/05/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability was handled as a non-public zero-day exploit for at least 27 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370955 (Foxit Reader sensitive information disclosure vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-82783, VDB-82784, VDB-82785 and VDB-82786 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Document Reader Software

Vendor

• Foxit

Name

• Reader

Version

• 9.0.0.29935

License

• free

Website

• Vendor: https://www.foxitsoftware.com/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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