AhnLab V3 Internet Security 8.0.7.5 Build 1373 MedCoreD.sys IOCTL Call memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in AhnLab V3 Internet Security 8.0.7.5 Build 1373. Affected is an unknown function in the library MedCoreD.sys. This manipulation as part of IOCTL Call causes memory corruption. This vulnerability is registered as CVE-2013-3947. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability has been found in AhnLab V3 Internet Security 8.0.7.5 Build 1373 and classified as critical. Affected by this vulnerability is an unknown code in the library MedCoreD.sys. The manipulation as part of a IOCTL Call leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in MedCoreD.sys in AhnLab V3 Internet Security 8.0.7.5 (Build 1373) allows local users to gain privileges via a crafted 0xA3350014 IOCTL call.

The bug was discovered 01/22/2014. The weakness was published 04/24/2018 (Website). It is possible to read the advisory at secunia.com. This vulnerability is known as CVE-2013-3947 since 06/04/2013. Attacking locally is a requirement. A single authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/25/2024).

The vulnerability was handled as a non-public zero-day exploit for at least 1553 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121749 (AhnLab V3 Internet Security IOCTL Handling Privilege Escalation Vulnerability).

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 OSVDB (102352†) and Secunia (SA54465†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/04/2013 🔍
01/22/2014 +232 days 🔍
04/24/2018 +1552 days 🔍
04/24/2018 +0 days 🔍
04/25/2018 +1 days 🔍
12/25/2024 +2436 days 🔍

Sourcesinfo

Advisory: secunia.com⛔
Status: Not defined

CVE: CVE-2013-3947 (🔍)
GCVE (CVE): GCVE-0-2013-3947
GCVE (VulDB): GCVE-100-116995
X-Force: 90626
Secunia: 54465
OSVDB: 102352 - CVE-2013-3947 - Ahnlab - V3 Internet Security - High

Entryinfo

Created: 04/25/2018 08:49
Updated: 12/25/2024 20:25
Changes: 04/25/2018 08:49 (59), 01/30/2020 19:16 (3), 03/07/2023 06:44 (3), 03/07/2023 06:54 (1), 12/25/2024 20:25 (31)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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