Remote code execution in Foxit Reader



| Updated: 2020-08-12
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2017-10951
CVE-2017-10952
CWE-ID CWE-77
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Foxit PDF Reader for Windows
Client/Desktop applications / Office applications

Vendor Foxit Software Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Command injection

EUVDB-ID: #VU7987

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-10951

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists in app.launchURL method due to insufficient validation of user-supplied string before using it to execute a system call. A remote attacker can send a specially crafted .pdf file, trick the victim into opening it, inject malicious commands and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise however requires that attacker is able to bypass Safe Reading Mode.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Foxit PDF Reader for Windows: 7.3.0.118 - 8.3.1

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-17-691/
https://www.zerodayinitiative.com/blog/2017/8/17/busting-myths-in-foxit-reader


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper input validation

EUVDB-ID: #VU7988

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-10952

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists in the saveAs JavaScript function due to insufficient validation of user-supplied input. A remote attacker can create a specially crafted .pdf file, trick the victim into opening it, write arbitrary files into attacker controlled locations and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise however requires that attacker is able to bypass Safe Reading Mode.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Foxit PDF Reader for Windows: 7.3.0.118 - 8.3.1

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-17-692/
https://www.zerodayinitiative.com/blog/2017/8/17/busting-myths-in-foxit-reader


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###