Lepton CMS 2.2.2 logout.php redirect

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7$0-$5k0.00

A vulnerability was found in Lepton CMS 2.2.2 (Content Management System). It has been rated as problematic. This issue affects an unknown code block of the file /LEPTON_stable_2.2.2/upload/account/logout.php. The manipulation of the argument redirect with the input value http://vuldb.com leads to a redirect vulnerability. Using CWE to declare the problem leads to CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 11/17/2016 by Tim Coen with Curesec Research Team as Lepton 2.2.2: CSRF, Open Redirect, Insecure Bruteforce Protection & Password Handling as confirmed mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. The public release has been coordinated in cooperation with Lepton. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK.

A public exploit has been developed by Tim Coen and been published immediately after the advisory. The exploit is available at seclists.org. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 169 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:LEPTON_stable_2.2.2/upload/account/logout.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.3.0 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The entries 93706, 93708, 93709 and 93710 are pretty similar.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
ATT&CK: T1204.001

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Tim Coen
Download: 🔍
Google Hack: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: CMS 2.3.0

Timelineinfo

05/09/2016 🔍
06/09/2016 +31 days 🔍
10/25/2016 +138 days 🔍
11/17/2016 +23 days 🔍
11/17/2016 +0 days 🔍
11/21/2016 +4 days 🔍
07/24/2019 +975 days 🔍

Sourcesinfo

Advisory: Lepton 2.2.2: CSRF, Open Redirect, Insecure Bruteforce Protection & Password Handling
Researcher: Tim Coen
Organization: Curesec Research Team
Status: Confirmed
Coordinated: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 11/21/2016 08:15
Updated: 07/24/2019 21:06
Changes: 11/21/2016 08:15 (56), 07/24/2019 21:06 (2)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!