Multipl vulnerabilities in Pulse Connect Secure



Published: 2021-05-05
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-22894
CVE-2021-22899
CVE-2021-22900
CWE-ID CWE-119
CWE-78
CWE-434
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerability #2 is being exploited in the wild.
Vulnerability #3 is being exploited in the wild.
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 3 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU52874

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-22894

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in Pulse Connect Secure Collaboration Suite. A remote user can trigger memory corruption and execute arbitrary code on the target system as the root user via a maliciously crafted meeting room.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pulse Connect Secure: 9.0R1 - 9.1R11.3


CPE2.3 External links

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/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) OS Command Injection

EUVDB-ID: #VU52875

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-22899

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation. A remote user can send a specially crafted request and execute arbitrary OS commands on the target system via Windows File Resource Profiles.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pulse Connect Secure: 9.0R1 - 9.1R11.3


CPE2.3 External links

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/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) Arbitrary file upload

EUVDB-ID: #VU52876

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-22900

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of archives within the file upload feature. A remote authenticated administrator can upload a malicious file and execute it on the server.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pulse Connect Secure: 9.0R1 - 9.1R11.3


CPE2.3 External links

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/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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