IPFire Firewall up to 2.21 backup.cgi command injection

Summaryinfo

A vulnerability identified as critical has been detected in IPFire Firewall up to 2.21. This impacts an unknown function of the file backup.cgi. Performing a manipulation results in command injection. This vulnerability was named CVE-2018-16232. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in IPFire Firewall up to 2.21 (Firewall Software). It has been classified as critical. This affects some unknown functionality of the file backup.cgi. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An authenticated command injection vulnerability exists in IPFire Firewall before 2.21 Core Update 124 in backup.cgi. This allows an authenticated user with privileges for the affected page to execute arbitrary commands.

The bug was discovered 10/15/2018. The weakness was presented 10/17/2018 (Website). The advisory is shared at ipfire.org. This vulnerability is uniquely identified as CVE-2018-16232 since 08/30/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. A authentication is required for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

Applying a patch is able to eliminate this problem.

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

Productinfo

Type

• Firewall Software

Vendor

• IPFire

Name

• Firewall

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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

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