Yaws up to 2.0.7 TLS inadequate encryption

Summaryinfo

A vulnerability marked as critical has been reported in Yaws up to 2.0.7. The impacted element is an unknown function of the component TLS Handler. The manipulation leads to inadequate encryption. This vulnerability is uniquely identified as CVE-2020-12872. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Yaws up to 2.0.7 and classified as problematic. This issue affects an unknown code of the component TLS Handler. The manipulation with an unknown input leads to a inadequate encryption vulnerability. Using CWE to declare the problem leads to CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. Impacted is confidentiality. The summary by CVE is:

yaws_config.erl in Yaws through 2.0.2 and/or 2.0.7 loads obsolete TLS ciphers, as demonstrated by ones that allow Sweet32 attacks.

The weakness was disclosed 05/15/2020. The identification of this vulnerability is CVE-2020-12872 since 05/14/2020. The exploitation is known to be difficult. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Yaws

Version

• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

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