QID 38899

Date Published: 2023-07-06

QID 38899: Ivanti Pulse Connect Secure Client Side Desync Attack Vulnerability (SA45476)

Pulse Connect Secure provides secure, authenticated access for remote and mobile users from any web-enabled device to corporate resources anytime, anywhere. Pulse Connect Secure is the most widely deployed SSL VPN for organizations of any size, across every major industry.

Affected Versions:
Pulse Connect Secure (PCS) 9.1R15 and below.

QID Detection Logic:(Authenticated)
This QID checks for vulnerable version of Pulse Connect Secure.

Successful exploitation of this vulnerability may be susceptible to client-side http request smuggling, When the application receives a POST request, it ignores the request's Content-Length header and leaves the POST body on the TCP/TLS socket. This body ends up prefixing the next HTTP request sent down that connection, this means when someone loads website attacker may be able to make browser issue a POST to the application, enabling XSS.

  • CVSS V3 rated as Medium - 5.4 severity.
  • CVSS V2 rated as High - 6.5 severity.
  • Solution
    The vendor has released fixes. Please visit SA45476 please check here for more information.

    CVEs related to QID 38899

    Software Advisories
    Advisory ID Software Component Link
    SA45476 URL Logo forums.ivanti.com/s/article/Client-Side-Desync-Attack?language=en_US