CVE-2021-34824 Information disclosure in n/a
Attackers can access credentials from different namespaces via Gateway and DestinationRule fields, exposing sensitive data in Istio service meshes.
- 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-2021-34824?
CVE-2021-34824 is a high-severity vulnerability in n/a, published on 29 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Istio (1.8.x, 1.9.0-1.9.5 and 1.10.0-1.10.1) contains a remotely exploitable vulnerability where credentials specified in the Gateway and DestinationRule credentialName field can be accessed from different namespaces.
Which versions are affected by CVE-2021-34824?
It affects 1 product.
Products include Istio Istio.
How do I fix CVE-2021-34824?
No fix has been published for CVE-2021-34824 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-34824 being exploited?
There is no known exploitation of CVE-2021-34824 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
- CVE-2021-31921 Missing authorization in n/a
- CVE-2026-31837 Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails.
- CVE-2021-39155 Authorization Policy Bypass Due to Case Insensitive Host Comparison
- CVE-2021-39156 Fragments in Path May Lead to Authorization Policy Bypass
- CVE-2022-39388 Istio may allow identity impersonation if user has localhost access
Sources
Also known as GHSA-m879-9xpq-ppwc.