CVE-2021-32565 HTTP Request Smuggling, content length with invalid charters
Attackers can smuggle HTTP requests via invalid Content-Length headers in Apache Traffic Server, potentially bypassing security controls or accessing unauthorized data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-32565?
CVE-2021-32565 is a high-severity vulnerability in Apache Traffic Server, published on 29 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Invalid values in the Content-Length header sent to Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.
Weakness: CWE-444
Which versions are affected by CVE-2021-32565?
It affects 2 products.
Products include Apache Traffic Server, Debian Debian Linux.
How do I fix CVE-2021-32565?
Upgrade to a fixed version.
Is CVE-2021-32565 being exploited?
There is no known exploitation of CVE-2021-32565 in the wild and no public exploit code.
Other vulnerabilities in Apache Traffic Server
Sources
Also known as DEBIAN-CVE-2021-32565, GHSA-mpgf-5wcr-9hgg, UBUNTU-CVE-2021-32565.