Microsoft Windows msasn1.dll heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows. Affected by this vulnerability is an unknown functionality in the library msasn1.dll. Performing a manipulation results in heap-based overflow. This vulnerability is cataloged as CVE-2005-1935. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Windows (Operating System) (affected version unknown). This affects an unknown functionality in the library msasn1.dll. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in the BERDecBitString function in Microsoft ASN.1 library (MSASN1.DLL) allows remote attackers to execute arbitrary code via nested constructed bit strings, which leads to a realloc of a non-null pointer and causes the function to overwrite previously freed memory, as demonstrated using a SPNEGO token with a constructed bit string during HTTP authentication, and a different vulnerability than CVE-2003-0818. NOTE: the researcher has claimed that MS:MS04-007 fixes this issue.

The weakness was shared 06/13/2005 (Website). The advisory is shared at phreedom.org. This vulnerability is uniquely identified as CVE-2005-1935 since 06/09/2005. 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 and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $100k and more.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 2763.

The vulnerability is also documented in the databases at X-Force (20870), Exploit-DB (3022) and Vulnerability Center (SBV-28977†). The entry VDB-25513 is related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

04/13/2004 🔍
06/09/2005 +422 days 🔍
06/13/2005 +4 days 🔍
06/13/2005 +0 days 🔍
01/04/2011 +2031 days 🔍
03/11/2015 +1526 days 🔍
09/17/2018 +1286 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: phreedom.org
Status: Not defined

CVE: CVE-2005-1935 (🔍)
GCVE (CVE): GCVE-0-2005-1935
GCVE (VulDB): GCVE-100-25509
X-Force: 20870
Vulnerability Center: 28977 - Microsoft Windows ASN.1 Library Remote Arbitrary Code Execution Vulnerability, Critical

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

Entryinfo

Created: 03/11/2015 11:41
Updated: 09/17/2018 08:08
Changes: 03/11/2015 11:41 (52), 09/17/2018 08:08 (10)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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