Improper access control in Istio



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-39388
CWE-ID CWE-284
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 Istio
Web applications / Other software

Vendor Istio

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper access control

EUVDB-ID: #VU69268

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-39388

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user on the local network can impersonate any workload identity within the service mesh.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Istio: 1.15.0 - 1.15.2

CPE2.3 External links

https://github.com/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4
https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9
https://istio.io/latest/news/releases/1.15.x/announcing-1.15.3/
https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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