Usage of vulnerable Apache Guacamole in Pulse Connect Secure



Published: 2020-07-08
Risk High
Patch available NO
Number of vulnerabilities 2
CVE-ID CVE-2020-9498
CVE-2020-9497
CWE-ID CWE-824
CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Vulnerable software
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Pulse Connect Secure
Server applications / Remote access servers, VPN

Vendor Pulse Secure

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Access of Uninitialized Pointer

EUVDB-ID: #VU29482

Risk: High

CVSSv3.1:

CVE-ID: CVE-2020-9498

CWE-ID: CWE-824 - Access of Uninitialized Pointer

Exploit availability: Yes

Description

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

The vulnerability exists due to the affected software mishandles pointers involved in processing data received via RDP static virtual channels. A remote attacker can use a specially crafted PDUs and execute arbitrary code on the target system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address these vulnerabilities.

Vulnerable software versions

Pulse Connect Secure: 8.0 - 9.1R7


CPE2.3 External links

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525/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) Input validation error

EUVDB-ID: #VU29481

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-9497

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to insufficient validation of user-supplied input of RDP static virtual channels. A remote attacker can use a specially crafted PDUs to disclose sensitive information within the memory of the guacd process handling the connection.  

Mitigation

Cybersecurity Help is currently unaware of any official solution to address these vulnerabilities.

Vulnerable software versions

Pulse Connect Secure: 8.0 - 9.1R7


CPE2.3 External links

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525/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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