VDB-117933 · CVE-2018-9975 · Qualys 370903

Foxit Reader 9.0.1.1049 Shift Event use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

A vulnerability was found in Foxit Reader 9.0.1.1049 (Document Reader Software). It has been classified as critical. This affects an unknown code of the component Shift Event Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.1049. 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 handling of shift events. 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-5762.

The bug was discovered 04/20/2018. The weakness was presented 05/17/2018 as confirmed security bulletin (Website). The advisory is shared at foxitsoftware.com. This vulnerability is uniquely identified as CVE-2018-9975 since 04/10/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly 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 370903 (Foxit Reader Multiple Vulnerabilities).

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. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 861522
OpenVAS Name: Foxit Reader Multiple Vulnerabilities-Apr18 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/10/2018 🔍
04/20/2018 +10 days 🔍
05/17/2018 +26 days 🔍
05/17/2018 +0 days 🔍
05/17/2018 +0 days 🔍
08/15/2024 +2282 days 🔍

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: foxitsoftware.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-9975 (🔍)
GCVE (CVE): GCVE-0-2018-9975
GCVE (VulDB): GCVE-100-117933
See also: 🔍

Entryinfo

Created: 05/17/2018 10:23 PM
Updated: 08/15/2024 03:22 PM
Changes: 05/17/2018 10:23 PM (62), 02/06/2020 08:47 PM (3), 08/15/2024 03:22 PM (17)
Complete: 🔍
Cache ID: 18:33D:40

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