Microsoft Windows Phone 7 Certificate Subject Common Name cryptographic issue

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Windows Phone 7. This affects an unknown part of the component Certificate Subject Common Name Handler. Performing a manipulation results in cryptographic issue. This vulnerability is known as CVE-2012-2993. Furthermore, an exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in Microsoft Windows Phone 7 (Operating System). This affects an unknown functionality of the component Certificate Subject Common Name Handler. The manipulation with an unknown input leads to a cryptographic issue vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality. The summary by CVE is:

Microsoft Windows Phone 7 does not verify the domain name in the subject s Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof an SSL server for the (1) POP3, (2) IMAP, or (3) SMTP protocol via an arbitrary valid certificate.

The weakness was published 09/17/2012 as confirmed advisory (Website). The advisory is shared at kb.cert.org. The public release happened without involvement of Microsoft. This vulnerability is uniquely identified as CVE-2012-2993 since 05/30/2012. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a private exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/17/2025). MITRE ATT&CK project uses the attack technique T1600 for this issue.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 90 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (78620), SecurityFocus (BID 55569†), OSVDB (85619†), SecurityTracker (ID 1027541†) and Vulnerability Center (SBV-37407†). Similar entry is available at VDB-4484. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/30/2012 🔍
06/19/2012 +20 days 🔍
09/10/2012 +83 days 🔍
09/17/2012 +7 days 🔍
09/17/2012 +0 days 🔍
09/17/2012 +0 days 🔍
09/18/2012 +1 days 🔍
09/19/2012 +1 days 🔍
09/24/2012 +5 days 🔍
11/26/2012 +63 days 🔍
01/17/2025 +4434 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: kb.cert.org
Status: Confirmed

CVE: CVE-2012-2993 (🔍)
GCVE (CVE): GCVE-0-2012-2993
GCVE (VulDB): GCVE-100-6525
CERT: 🔍
X-Force: 78620 - Microsoft Windows Phone 7 domain name spoofing, Medium Risk
SecurityFocus: 55569 - Microsoft Windows Phone 7 SSL Certificate 'Common Name' Validation Security Bypass Vulnerability
OSVDB: 85619
SecurityTracker: 1027541 - Windows Phone Certificate Validation Flaw Lets Remote Users Spoof Secure E-mail Servers
Vulnerability Center: 37407 - Microsoft Windows Phone 7 Spoofing an SSL Server via an Arbitrary Valid Certificate, Low

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

Entryinfo

Created: 09/24/2012 15:43
Updated: 01/17/2025 00:14
Changes: 09/24/2012 15:43 (75), 12/04/2024 03:22 (17), 01/17/2025 00:14 (21)
Complete: 🔍
Committer:
Cache ID: 216:2B2:103

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