Inconsistent interpretation of HTTP requests in Ivanti Connect Secure (formerly Pulse Connect Secure) - #VU67681
Published: September 27, 2022
Vulnerability identifier: #VU67681
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.
The vulnerability exists due to improper validation of HTTP requests within the Pulse Collaboration feature. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.
Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.
Affected software
Ivanti Connect Secure (formerly Pulse Connect Secure)
Remediation
Install updates from vendor's website.
Ivanti Connect Secure (formerly Pulse Connect Secure) - update to 9.1R16.1