openEuler 22.03 LTS update for strongswan

1) State Issues

EUVDB-ID: #VU59994

Risk: High

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-45079

CWE-ID: CWE-371 - State Issues

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to improper handling of EAP-Success messages. A remote attacker can send a specially crafted (early) EAP-Success message to the affected system and bypass authentication or perform a denial of service attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

strongswan-tnc-imcvs: before 5.7.2-12

strongswan-sqlite: before 5.7.2-12

strongswan-debuginfo: before 5.7.2-12

strongswan-charon-nm: before 5.7.2-12

strongswan-libipsec: before 5.7.2-12

strongswan-debugsource: before 5.7.2-12

strongswan: before 5.7.2-12

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2068

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.