Vulnerability identifier: #VU35772

Vulnerability risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20807

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ivanti Connect Secure (formerly Pulse Connect Secure)
Server applications / Remote access servers, VPN

Vendor: Ivanti

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

An XSS issue has been found in welcome.cgi in Pulse Secure Pulse Connect Secure (PCS) 8.1.x before 8.1R12, 8.2.x before 8.2R9, and 8.3.x before 8.3R3 due to one of the URL parameters not being sanitized properly.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Ivanti Connect Secure (formerly Pulse Connect Secure): 8.1 - 8.3

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External links
http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730/

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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