Microsoft Outlook Web App up to 14.1.287.0 owa/redir.aspx URL authentication spoofing ⚔ [Disputed]

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.
5.0	$0-$5k	0.09

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft Outlook Web App up to 14.1.287.0. This issue affects some unknown processing of the file owa/redir.aspx. Such manipulation of the argument URL leads to authentication spoofing. Additionally, an exploit exists. The actual existence of this vulnerability is currently in question.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Outlook Web App up to 14.1.287.0 (Groupware Software). Affected by this issue is an unknown functionality of the file owa/redir.aspx. The manipulation of the argument URL with an unknown input leads to a authentication spoofing vulnerability. Using CWE to declare the problem leads to CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. Impacted is integrity.

The bug was discovered 06/14/2012. The weakness was released 07/02/2012 by Yaniv Miron with FortConsult Security Research Team as not defined posting (OSVDB). The advisory is shared for download at osvdb.org. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

After immediately, there has been an exploit disclosed. The exploit is available at osvdb.org. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 18 days. During that time the estimated underground price was around $5k-$25k. The real existence of this vulnerability is still doubted at the moment. By approaching the search of inurl:owa/redir.aspx it is possible to find vulnerable targets with Google Hacking.

The problem might be mitigated by replacing the product with Zimbra, Hotmail or Gmail as an alternative.

The vulnerability is also documented in the vulnerability database at OSVDB (83545†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Groupware Software

Vendor

Microsoft

Name

Outlook Web App

Version

14.1.287

License

commercial

Website

Vendor: https://www.microsoft.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Alternative: Zimbra/Hotmail/Gmail

Timelineinfo

06/14/2012 🔍
06/14/2012 +0 days 🔍
06/15/2012 +1 days 🔍
07/02/2012 +17 days 🔍
07/02/2012 +0 days 🔍
07/04/2012 +2 days 🔍
07/10/2012 +6 days 🔍
08/25/2017 +1872 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: osvdb.org⛔
Researcher: Yaniv Miron
Organization: FortConsult Security Research Team
Status: Not defined
Disputed: 🔍

GCVE (VulDB): GCVE-100-5636
OSVDB: 83545

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/10/2012 12:52
Updated: 08/25/2017 22:16
Changes: 07/10/2012 12:52 (53), 08/25/2017 22:16 (2)
Complete: 🔍
Cache ID: 216:92C:103