Remote Credentials Exposure in Istio Gateway and DestinationRule
CVE-2021-34824

8.8HIGH

Key Information:

Vendor

Istio

Status
Istio
Vendor
CVE Published:
29 June 2021

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-34824?

A vulnerability in Istio affects versions 1.8.x, 1.9.0 through 1.9.5, and 1.10.0 to 1.10.1, enabling remote attackers to access credentials specified in the 'credentialName' field of both Gateway and DestinationRule configurations across different namespaces. This exposure poses a significant risk, potentially allowing unauthorized access to sensitive operations within the affected services.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-34824
Created by rsalmond

References

https://github.com/istio/istio/releases
x_refsource_MISC
https://istio.io/latest/news/security/istio-security-2021...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.