Apache ATS up to 6.2.3/7.1.9/8.0.6 HTTP/2 resource consumption

Summaryinfo

A vulnerability was found in Apache ATS up to 6.2.3/7.1.9/8.0.6. It has been classified as problematic. Impacted is an unknown function of the component HTTP2 Handler. Performing a manipulation results in resource consumption. This vulnerability is reported as CVE-2020-9481. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic has been found in Apache ATS up to 6.2.3/7.1.9/8.0.6. This affects an unknown code block of the component HTTP2 Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

Apache ATS 6.0.0 to 6.2.3, 7.0.0 to 7.1.9, and 8.0.0 to 8.0.6 is vulnerable to a HTTP/2 slow read attack.

The weakness was disclosed 04/27/2020 (Website). It is possible to read the advisory at lists.apache.org. This vulnerability is uniquely identified as CVE-2020-9481 since 03/01/2020. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/28/2020). The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

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

Vendor

• Apache

Name

• ATS

Version

• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 7.1.0
• 7.1.1
• 7.1.2
• 7.1.3
• 7.1.4
• 7.1.5
• 7.1.6
• 7.1.7
• 7.1.8
• 7.1.9
• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.0.6

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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