CVE-2019-7311 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.x0rsecurity.com/2019/05/03/my-first-cve-linksys-wrt-1300-acs-cve-2019-7311/ https://robot-security.blogspot.com

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8