CVE-2023-46656 Jenkins Multibranch Scan Webhook Trigger Plugin uses non-constant time webhook token comparison
Attackers can statistically recover webhook tokens due to non-constant time comparison, bypassing authentication in Jenkins Multibranch Scan Webhook Trigger Plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-46656?
CVE-2023-46656 is a medium-severity vulnerability in Jenkins Multibranch Scan Webhook Trigger Plugin, published on 25 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Jenkins Multibranch Scan Webhook Trigger Plugin 1.0.9 and earlier uses a non-constant time comparison function when checking whether the provided and expected webhook token are equal, potentially allowing attackers to use statistical methods to obtain a valid webhook token.
Weakness: CWE-697
Which versions are affected by CVE-2023-46656?
2 open source packages ship an affected version, including igalg.jenkins.plugins:multibranch-scan-webhook-trigger. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
igalg.jenkins.plugins:multibranch-scan-webhook-trigger Maven | All versions to 1.0.9 | None |
igalg.jenkins.plugins:multibranch-scan-webhook-trigger Maven | All versions to 1.0.9 | None |
Products include Jenkins Multibranch Scan Webhook Trigger.
How do I fix CVE-2023-46656?
No fix has been published for CVE-2023-46656 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-46656 being exploited?
There is no known exploitation of CVE-2023-46656 in the wild and no public exploit code.
Sources
Also known as GHSA-8859-v9jp-cphf.