#VU27379 Insufficient Session Expiration in Kiali - CVE-2020-1762

Vulnerability identifier: #VU27379

Vulnerability risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-1762

CWE-ID: CWE-613

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Kiali
Client/Desktop applications / Other client software

Vendor: Kiali

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to an insufficient JWT validation. A remote non-authenticated attacker can steal a valid JWT cookie and gain unauthorized access to session that belongs to another user, possibly gain privileges to view and alter the Istio configuration.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Kiali: 0.4.0 - 1.15.0

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1762
https://kiali.io/news/security-bulletins/kiali-security-001/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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