Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-45079 |
CWE-ID | CWE-371 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
strongswan (Debian package) Operating systems & Components / Operating system package or component |
Vendor | Debian |
Security Bulletin
This security bulletin contains one high risk vulnerability.
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
DescriptionThe 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.
Update strongswan package to one of the following versions: 5.7.2-1+deb10u2, 5.9.1-1+deb11u2.
Vulnerable software versionsstrongswan (Debian package): 5.7.0-1 - 5.9.1-1+deb11u1
External linkshttp://www.debian.org/security/2022/dsa-5056
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.