CivetWeb up to 1.10 SSI File civetweb.c send_ssi_file out-of-bounds

Summaryinfo

A vulnerability was found in CivetWeb up to 1.10. It has been rated as critical. The impacted element is the function send_ssi_file of the file civetweb.c of the component SSI File Handler. The manipulation leads to out-of-bounds. This vulnerability is traded as CVE-2018-12684. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in CivetWeb up to 1.10. This issue affects the function send_ssi_file of the file civetweb.c of the component SSI File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Out-of-bounds Read in the send_ssi_file function in civetweb.c in CivetWeb through 1.10 allows attackers to cause a Denial of Service or Information Disclosure via a crafted SSI file.

The bug was discovered 06/15/2018. The weakness was shared 06/22/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-12684 since 06/22/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• CivetWeb

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10

License

• open-source

Website

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

CPE 2.3info

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CPE 2.2info

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