CVE-2012-1293 in fex
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in fup in Frams Fast File EXchange (F*EX, aka fex) before 20111129-2 allow remote attackers to inject arbitrary web script or HTML via the (1) to or (2) from parameters.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 12/14/2021
The vulnerability identified as CVE-2012-1293 represents a critical cross-site scripting flaw discovered in the Frams Fast File EXchange (F*EX) application, commonly known as fup. This vulnerability affects versions of the software prior to 20111129-2, making it a significant security concern for organizations that relied on this file transfer system. The flaw resides in the application's handling of user-supplied input within specific parameters, creating an avenue for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers. The vulnerability specifically targets the to and from parameters, which are commonly used in file transfer applications to specify recipient and sender information, making these fields particularly susceptible to injection attacks.
The technical nature of this vulnerability aligns with CWE-79, which describes cross-site scripting flaws where untrusted data is incorporated into web pages without proper validation or sanitization. The flaw operates by allowing attackers to manipulate the to and from parameters through HTTP requests, enabling them to inject malicious scripts that will execute when other users view the affected application interface. This type of vulnerability falls under the category of reflected XSS attacks, where the malicious payload is reflected off the web server and delivered to the victim's browser. The vulnerability's impact is amplified because file transfer applications typically handle sensitive information, and attackers could potentially exploit this weakness to steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.
The operational impact of CVE-2012-1293 extends beyond simple script injection, as it can enable more sophisticated attacks within the targeted environment. An attacker could leverage this vulnerability to establish persistent access through session hijacking, particularly if users with elevated privileges interact with the vulnerable application. The attack vector requires minimal technical expertise, making it particularly dangerous as it can be exploited by threat actors with varying skill levels. Organizations using vulnerable versions of F*EX would face potential data breaches, unauthorized access to file transfer systems, and possible compromise of user credentials. The vulnerability also represents a significant risk to the integrity of file transfer communications, as attackers could manipulate the transfer process or inject malicious content into the file transfer workflow.
Mitigation strategies for CVE-2012-1293 should focus on immediate software updates to the patched version 20111129-2 or later, which would address the input validation issues in the affected parameters. Additionally, implementing proper input sanitization and output encoding techniques can prevent similar vulnerabilities from occurring in the future. Organizations should also consider deploying web application firewalls to detect and block malicious payloads attempting to exploit XSS vulnerabilities. The implementation of content security policies and proper HTTP headers can further reduce the impact of successful XSS attacks. From an operational standpoint, security teams should conduct comprehensive vulnerability assessments of all file transfer systems and ensure that proper patch management procedures are in place to prevent similar issues from arising in other applications within the organization's attack surface. This vulnerability serves as a reminder of the critical importance of input validation in web applications and the potential consequences of failing to properly sanitize user-supplied data.