CVE-2023-33141 Yet Another Reverse Proxy (YARP) Denial of Service Vulnerability
Attackers can cause a denial of service in the YARP reverse proxy library, affecting applications using this Microsoft NuGet package.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-33141?
CVE-2023-33141 is a high-severity denial of service vulnerability in Microsoft YARP 1.0, published on 23 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Yet Another Reverse Proxy (YARP) Denial of Service Vulnerability
Weakness: CWE-400
Which versions are affected by CVE-2023-33141?
4 open source packages ship an affected version, including Yarp.ReverseProxy. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
Yarp.ReverseProxy NuGet | All versions | 1.1.2 |
Yarp.ReverseProxy NuGet | All versions | 1.1.2 |
Yarp.ReverseProxy NuGet | From 2.0.0 | 2.0.1 |
Yarp.ReverseProxy NuGet | From 2.0.0 | 2.0.1 |
Products include Microsoft Yet Another Reverse Proxy.
How do I fix CVE-2023-33141?
Upgrade Yarp.ReverseProxy to a fixed version for your release line: 1.1.2 or 2.0.1.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-33141 being exploited?
There is no known exploitation of CVE-2023-33141 in the wild and no public exploit code.
Other vulnerabilities in Microsoft YARP 1.0
Sources
Also known as GHSA-jrjw-qgr2-wfcg.