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GHSA-mrqx-mjc4-vfh3
No affected components available
Impact
The annotations feature lets users add annotations on highlighted parts of an entry.
The controller does not validate authorization on PUT and DELETE requests which lets a logged user modify or delete any annotation using their ID on their endpoints example.org/annotations/{id}.
These vulnerable requests also disclose highlighted parts of the entry to the attacker.
You should immediately patch your instance to version 2.5.3 or higher if you have more than one user and/or having open registration.
Resolution
A user check is now done in the vulnerable methods before applying change on an annotation.
The Annotation retrieval through a ParamConverter has also been replaced with a call to the AnnotationRepository in order to prevent any information disclosure through response discrepancy.
Workarounds
Credits
We would like to thank @bAuh0lz for reporting this issue through huntr.dev.
Reference: https://huntr.dev/bounties/8fdd9b31-d89b-4bbe-9557-20b960faf926/
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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