Session Fixation in Pulse Connect Secure

1) Session Fixation

EUVDB-ID: #VU31114

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11213

CWE-ID: CWE-384 - Session Fixation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

In Pulse Secure Pulse Desktop Client and Network Connect, an attacker could access session tokens to replay and spoof sessions, and as a result, gain unauthorized access as an end user, a related issue to CVE-2019-1573. (The endpoint would need to be already compromised for exploitation to succeed.) This affects Pulse Desktop Client 5.x before Secure Desktop 5.3R7 and Pulse Desktop Client 9.x before Secure Desktop 9.0R3. It also affects (for Network Connect customers) Pulse Connect Secure 8.1 before 8.1R14, 8.3 before 8.3R7, and 9.0 before 9.0R3.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Ivanti Connect Secure (formerly Pulse Connect Secure): 9.0R1 - 9.0R2.1

External links

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44114
http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44114/
http://www.kb.cert.org/vuls/id/192371

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 send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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