Microsoft IIS 7.0/7.5 FTP Command information disclosure

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.
4.8$0-$5k0.00

A vulnerability has been found in Microsoft IIS 7.0/7.5 (Web Server) and classified as problematic. Affected by this vulnerability is some unknown functionality of the component FTP Command. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

Microsoft FTP Service 7.0 and 7.5 for Internet Information Services (IIS) processes unspecified commands before TLS is enabled for a session, which allows remote attackers to obtain sensitive information by reading the replies to these commands, aka "FTP Command Injection Vulnerability."

The issue has been introduced in 01/30/2007. The weakness was published 11/13/2012 by Justin Royce with Microsoft as MS12-073 as confirmed bulletin (Website). The advisory is shared at technet.microsoft.com. The public release has been coordinated with Microsoft. This vulnerability is known as CVE-2012-2532 since 05/09/2012. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a private exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2114 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 62940 (MS12-073: Vulnerabilities in Microsoft IIS Could Allow Information Disclosure (2733829) (uncredentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90842 (Microsoft Internet Information Services (IIS) Information Disclosure Vulnerability (MS12-073)).

Applying the patch KB2733829 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (77360) and Tenable (62940). Similar entry is available at 6924.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 62940
Nessus Name: MS12-073: Vulnerabilities in Microsoft IIS Could Allow Information Disclosure (2733829) (uncredentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902694
OpenVAS Name: Microsoft Windows IIS FTP Service Information Disclosure Vulnerability (2761226)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: KB2733829

Timelineinfo

01/30/2007 🔍
05/09/2012 +1926 days 🔍
11/08/2012 +183 days 🔍
11/13/2012 +5 days 🔍
11/13/2012 +0 days 🔍
11/13/2012 +0 days 🔍
11/13/2012 +0 days 🔍
11/13/2012 +0 days 🔍
11/13/2012 +0 days 🔍
11/14/2012 +1 days 🔍
11/15/2012 +1 days 🔍
11/16/2012 +1 days 🔍
04/19/2021 +3076 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS12-073
Researcher: Justin Royce
Organization: Microsoft
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-2532 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 77360
SecurityTracker: 1027751 - Microsoft Internet Information Server (IIS) FTP Server Lets Remote Users Obtain Files and Local Users Obtain Passwords
Vulnerability Center: 37236 - [MS12-073] Microsoft FTP Service For IIS Allows Remote Information Disclosure, Medium
SecurityFocus: 56440 - Microsoft IIS FTP Service CVE-2012-2532 Remote Command Injection Vulnerability
Secunia: 51235 - Microsoft Internet Information Services Two Information Disclosure Vulnerabilities, Moderately Critical
OSVDB: 87262

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

Entryinfo

Created: 11/15/2012 10:13
Updated: 04/19/2021 10:18
Changes: 11/15/2012 10:13 (94), 04/21/2017 11:31 (4), 04/19/2021 10:18 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!