CVE-2023-20866 Spring Session session ID can be logged to the standard output stream
Attackers with log access can steal session IDs from standard output when using HeaderHttpSessionIdResolver, enabling session hijacking.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-20866?
CVE-2023-20866 is a medium-severity vulnerability in Spring Session, published on 13 Apr 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Spring Session version 3.0.0, the session id can be logged to the standard output stream. This vulnerability exposes sensitive information to those who have access to the application logs and can be used for session hijacking. Specifically, an application is vulnerable if it is using HeaderHttpSessionIdResolver.
Weakness: CWE-200
Which versions are affected by CVE-2023-20866?
2 open source packages ship an affected version, including org.springframework.session:spring-session-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.springframework.session:spring-session-core Maven | From 3.0.0 | 3.0.1 |
org.springframework.session:spring-session-core Maven | From 3.0.0 | 3.0.1 |
Products include Vmware Spring Session.
How do I fix CVE-2023-20866?
Upgrade org.springframework.session:spring-session-core to 3.0.1 or later.
Is CVE-2023-20866 being exploited?
There is no known exploitation of CVE-2023-20866 in the wild and no public exploit code.
Sources
Also known as GHSA-r7qr-f43m-pxfr.