Cilium up to 1.14.15/1.15.9 default permission

Summaryinfo

A vulnerability was found in Cilium up to 1.14.15/1.15.9 and classified as critical. This vulnerability affects unknown code. Such manipulation leads to default permission. This vulnerability is documented as CVE-2024-47825. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cilium up to 1.14.15/1.15.9. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a default permission vulnerability. Using CWE to declare the problem leads to CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. Impacted is confidentiality. CVE summarizes:

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.16 and 1.15.10, a policy rule denying a prefix that is broader than `/32` may be ignored if there is a policy rule referencing a more narrow prefix (`CIDRSet` or `toFQDN`) and this narrower policy rule specifies either `enableDefaultDeny: false` or `- toEntities: all`. Note that a rule specifying `toEntities: world` or `toEntities: 0.0.0.0/0` is insufficient, it must be to entity `all`.This issue has been patched in Cilium v1.14.16 and v1.15.10. As this issue only affects policies using `enableDefaultDeny: false` or that set `toEntities` to `all`, some workarounds are available. For users with policies using `enableDefaultDeny: false`, remove this configuration option and explicitly define any allow rules required. For users with egress policies that explicitly specify `toEntities: all`, use `toEntities: world`.

The advisory is available at github.com. This vulnerability is handled as CVE-2024-47825 since 10/03/2024. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1222 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 210390 (SUSE SLES15 / openSUSE 15 Security Update : govulncheck-vulndb (SUSE-SU-2024:3911-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.14.16 or 1.15.10 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (210390). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Cilium

Version

• 1.14.0
• 1.14.1
• 1.14.2
• 1.14.3
• 1.14.4
• 1.14.5
• 1.14.6
• 1.14.7
• 1.14.8
• 1.14.9
• 1.14.10
• 1.14.11
• 1.14.12
• 1.14.13
• 1.14.14
• 1.14.15
• 1.15.0
• 1.15.1
• 1.15.2
• 1.15.3
• 1.15.4
• 1.15.5
• 1.15.6
• 1.15.7
• 1.15.8
• 1.15.9

Website

• Product: https://github.com/cilium/cilium/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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