Strix
26.1K

CVE-2022-21826

MEDIUMCVSS 5.4/10EPSS 45.23%

Last modified

CVE-2022-21826 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Pulse Secure version 9.115 and below 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.. EPSS estimates a 45.23% chance of exploitation in the next 30 days.

Description

Pulse Secure version 9.115 and below 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.

Metrics

CVSS 3.1
5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability
45.23%

98.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
IvantiConnect Secure9.1
PulsesecurePulse Connect Secure< 9.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-21826?
Pulse Secure version 9.115 and below 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.
How severe is CVE-2022-21826?
CVE-2022-21826 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 45.23% probability of exploitation in the next 30 days.
How do I fix CVE-2022-21826?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-21826?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST