Linksys WRT1900ACS 1.0.3.187766 Cookie Base64 cryptographic issue

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linksys WRT1900ACS 1.0.3.187766. Affected by this vulnerability is an unknown functionality of the component Cookie Handler. The manipulation results in cryptographic issue (Base64). This vulnerability was named CVE-2019-7311. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Linksys WRT1900ACS 1.0.3.187766 (Router Operating System). It has been classified as problematic. Affected is an unknown functionality of the component Cookie Handler. The manipulation with an unknown input leads to a cryptographic issue vulnerability (Base64). CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered on Linksys WRT1900ACS 1.0.3.187766 devices. A lack of encryption in how the user login cookie (admin-auth) is stored on a victim's computer results in the admin password being discoverable by a local attacker, and usable to gain administrative access to the victim's router. The admin password is stored in base64 cleartext in an "admin-auth" cookie. An attacker sniffing the network at the time of login could acquire the router's admin password. Alternatively, gaining physical access to the victim's computer soon after an administrative login could result in compromise.

The weakness was presented 06/06/2019. This vulnerability is traded as CVE-2019-7311 since 02/03/2019. Local access is required to approach this attack. The successful exploitation needs a authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1600 by the MITRE ATT&CK project.

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

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Productinfo

Type

• Router Operating System

Vendor

• Linksys

Name

• WRT1900ACS

Version

• 1.0.3.187766

License

• commercial

Website

• Vendor: https://www.linksys.com/

CPE 2.3info

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CPE 2.2info

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