Vulnerability · Published Nov 16, 2021 · Assigned by Mend

CVE-2021-25985FactorJS - Insufficient Session Expiration Leads to a Local Account Takeover

High 7.8

In plain English

A high-severity security flaw in Factor from FactorJS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)0.8%top 43.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

In Factor (App Framework & Headless CMS) v1.0.4 to v1.8.30, improperly invalidate a user’s session even after the user logs out of the application. In addition, user sessions are stored in the browser’s local storage, which by default does not have an expiration time. This makes it possible for an attacker to steal and reuse the cookies using techniques such as XSS attacks, followed by a local account takeover.

Affected products (as reported)

Vendor	Product	Versions
FactorJS	Factor	1.0.4 – before unspecifiedunspecified – through 1.8.30

Weakness: CWE-613 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://github.com/FactorJS/factor/blob/v1.8.30/%40factor/user/util.ts#L65 x_refsource_MISC
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25985 x_refsource_MISC