Multiple vulnerabilities in Pulse Connect Secure and Pulse Policy Secure



Published: 2020-09-23
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2020-8243
CVE-2020-8238
CVE-2020-8256
CWE-ID CWE-94
CWE-79
CWE-611
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
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Pulse Connect Secure
Server applications / Remote access servers, VPN

Pulse Policy Secure
Server applications / Remote access servers, VPN

Vendor Pulse Secure

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Code Injection

EUVDB-ID: #VU46997

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2020-8243

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in the admin interface. A remote authenticated administrator can upload a specially crafted template and execute arbitrary code on the system.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pulse Connect Secure: 9.0R1 - 9.1R8.1

Pulse Policy Secure: 9.0R1 - 9.1R8.1


CPE2.3 External links

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44588/p?pubstatus=o

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

2) Cross-site scripting

EUVDB-ID: #VU46998

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-8238

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the web interface of PCS/PPS. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pulse Connect Secure: 9.0R1 - 9.1R8.1

Pulse Policy Secure: 9.0R1 - 9.1R8.1


CPE2.3 External links

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44588/p?pubstatus=o

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

3) XML External Entity injection

EUVDB-ID: #VU46999

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-8256

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote authenticated user can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pulse Connect Secure: 9.0R1 - 9.1R8.1


CPE2.3 External links

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44588/p?pubstatus=o

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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