#VU27880 Insufficient Session Expiration in Keycloak - CVE-2020-1724

Vulnerability identifier: #VU27880

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-1724

CWE-ID: CWE-613

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Keycloak
Server applications / Directory software, identity management

Vendor: Keycloak

Description

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

The vulnerability exists due to insufficient session expiration issue. A remote authenticated attacker can see the personal information of a previously logged out user in the account manager section.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Keycloak: before 9.0.2, 9.0.2

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1724

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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