A vulnerability has been found in Sangfor 零信任访问控制系统 aTrust 2.3.10.60 and classified as critical. Affected by this vulnerability is an unknown functionality in the library MSASN1.dll. The manipulation leads to uncontrolled search path. Local access is required to approach this attack. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product’s direct control.
This might allow attackers to execute their own programs, access unauthorized data files, or modify configuration in unexpected ways. If the product uses a search path to locate critical resources such as programs, then an attacker could modify that search path to point to a malicious program, which the targeted product would then execute. The problem extends to any type of critical resource that the product trusts. Some of the most common variants of untrusted search path are: