Ivanti Pulse Connect Secure up to 9.115 Header Content-Length request smuggling

Summaryinfo

A vulnerability classified as critical has been found in Ivanti Pulse Connect Secure up to 9.115. This affects an unknown part of the component Header Handler. Performing a manipulation of the argument Content-Length results in request smuggling. This vulnerability is cataloged as CVE-2022-21826. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Ivanti Pulse Connect Secure up to 9.115 (Network Encryption Software). This affects some unknown processing of the component Header Handler. The manipulation of the argument Content-Length with an unknown input leads to a request smuggling vulnerability. CWE is classifying the issue as CWE-444. The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was shared 10/01/2022. The advisory is shared at kb.pulsesecure.net. This vulnerability is uniquely identified as CVE-2022-21826 since 12/10/2021. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Network Encryption Software

Vendor

• Ivanti

Name

• Pulse Connect Secure

Version

• 9.115

License

• commercial

CPE 2.3info

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CPE 2.2info

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