#VU53399 Security features bypass


Published: 2021-05-20

Vulnerability identifier: #VU53399

Vulnerability risk: Low

CVSSv3.1: 6.6 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-30465

CWE-ID: CWE-254

Exploitation vector: Local network

Exploit availability: No

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

Vendor: Open Container Initiative

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the security features bypass issue. A remote authenticated attacker on the local network can perform a symlink exchange attack and host filesystem being bind-mounted into the container.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

runc: 1.0.0 rc94

CPE

External links
https://github.com/opencontainers/runc/security/advisories/GHSA-c3xm-pvg7-gh7r


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.


Latest bulletins with this vulnerability