CVE-2021-43963 Information disclosure in n/a
Attackers with read access can extract bucket credentials from sync documents to gain write access, requiring shared bucket access and non-X.509 authentication.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-43963?
CVE-2021-43963 is a high-severity vulnerability in n/a, published on 7 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in Couchbase Sync Gateway 2.7.0 through 2.8.2. The bucket credentials used to read and write data in Couchbase Server were insecurely being stored in the metadata within sync documents written to the bucket. Users with read access could use these credentials to obtain write access. (This issue does not affect clusters where Sync Gateway is authenticated with X.509 client certificates. This issue also does not affect clusters where shared bucket access is not enabled on Sync Gateway.)
Weakness: CWE-200
Which versions are affected by CVE-2021-43963?
It affects 1 product.
Products include Couchbase Sync Gateway.
How do I fix CVE-2021-43963?
No fix has been published for CVE-2021-43963 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-43963 being exploited?
There is no known exploitation of CVE-2021-43963 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-v978-p5g5-3r76.