Foxit Reader 9.0.0.29935 AFSimple_Calculate use after free

Summaryinfo

A vulnerability identified as critical has been detected in Foxit Reader 9.0.0.29935. This affects the function AFSimple_Calculate. This manipulation causes use after free. The identification of this vulnerability is CVE-2018-1180. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Foxit Reader 9.0.0.29935 (Document Reader Software). It has been declared as critical. Affected by this vulnerability is the function AFSimple_Calculate. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows remote attackers to execute arbitrary code 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 AFSimple_Calculate method. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-5491.

The bug was discovered 04/20/2018. The weakness was shared 05/17/2018 as confirmed security bulletin (Website). The advisory is shared at foxitsoftware.com. This vulnerability is known as CVE-2018-1180 since 12/05/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

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.

The entries VDB-82783, VDB-82784, VDB-82785 and VDB-82786 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Document Reader Software

Vendor

• Foxit

Name

• Reader

Version

• 9.0.0.29935

License

• free

Website

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

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion