Net::CIDR::Lite up to 0.21 on Perl IP Address String access control

Summaryinfo

A vulnerability, which was classified as critical, has been found in Net::CIDR::Lite up to 0.21 on Perl. Impacted is an unknown function of the component IP Address String Handler. Performing a manipulation results in access control. This vulnerability is reported as CVE-2021-47154. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Net::CIDR::Lite up to 0.21 on Perl. This affects an unknown functionality of the component IP Address String Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Net::CIDR::Lite module before 0.22 for Perl does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2021-47154 since 03/18/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 253376 (Linux Distros Unpatched Vulnerability : CVE-2021-47154), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.22 eliminates this vulnerability. Applying the patch 23b6ff0590dc279521863a502e890ef19a5a76fc is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (253376). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• Net::CIDR::Lite

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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