Monday, 29 December 2014

CVE-2014-7291 Springshare LibCal XSS (Cross-Site Scripting) Web Application Zero Day Bug

Exploit Title: Springshare LibCal Multiple XSS (Cross-Site Scripting) Security Weakness
Product: LibCal
Vendor: Springshare
Vulnerable Versions: 2.0
Tested Version: 2.0
Advisory Publication: Nov 25, 2014
Latest Update: Nov 25, 2014
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2014-7291
Impact CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:P/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification
Solution Status: Fixed by Vendor
Discover and Reporter: Wang Jing [School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University (NTU), Singapore] (@justqdjing)

Recommendation Details:

(1) Vendor & Product Description:


Product & Vulnerable Versions:

Vendor URL & download:

Product Introduction Overview: “LibCal is an easy to use calendaring and event management platform for libraries. Used by 1,600+ libraries worldwide, LibCal makes it a breeze to manage online calendar of events, offer room bookings online, manage the opening hours for various locations."

    "Manage Calendar & Event Registrations
    Create custom Registration Forms
    Manage Consultation Appointments"
    Create an Online Room Booking System
    Display Library & Departmental Hours
    Share Calendar/Event Info via Widgets"

(2) Vulnerability Details: Springshare LibCal web application has a security bug problem. Hacker can exploit it by XSS attacks. This may allow a remote attacker to create a specially crafted request that would execute arbitrary script code in a user's browser session within the trust relationship between their browser and the server.

Several Springshare LibCal products vulnerabilities have been found by some other bug hunter researchers before. Springshare LibCal has patched some of them. The MITRE Corporation is a not-for-profit company that operates multiple federally funded research and development centers (FFRDCs), which provide innovative, practical solutions for some of our nation's most critical challenges in defense and intelligence, aviation, civil systems, homeland security, the judiciary, healthcare, and cybersecurity. It has published suggestions, advisories, solutions details related to Springshare LibCal vulnerabilities.

(2.1) The first code programming flaw  occur at “/api_events.php?” page, with “&m” and “&cid” parameters.

(3) Solutions: 2014-10-01: Report vulnerability to Vendor 2014-10-15: Vendor replied with thanks and vendor changed the source code



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