CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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6.0 | $0-$5k | 0.00 |
A vulnerability was found in Microsoft Lync 2010 (Unified Communication Software). It has been rated as critical. This issue affects an unknown code block of the component Search Handler. The manipulation with an unknown input leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
Untrusted search path vulnerability in Microsoft Lync 2010, 2010 Attendee, and 2010 Attendant allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .ocsmeet file, aka "Lync Insecure Library Loading Vulnerability."
The weakness was released 06/12/2012 by Hamburgers Maccoy as MS12-039 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. The identification of this vulnerability is CVE-2012-1849 since 03/22/2012. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1574 according to MITRE ATT&CK.
The vulnerability scanner Nessus provides a plugin with the ID 59457 (MS12-039: Vulnerabilities in Lync Could Allow Remote Code Execution (2707956)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90811 (Microsoft Lync Remote Code Execution Vulnerability (MS12-039)).
Applying the patch MS12-039 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. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12329.
The vulnerability is also documented in the vulnerability database at Tenable (59457).
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
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CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
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CVSSv2
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Exploiting
Class: Untrusted search pathCWE: CWE-426
ATT&CK: T1574
Local: No
Remote: Yes
Availability: 🔍
Status: Proof-of-Concept
Download: 🔍
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Nessus ID: 59457
Nessus Name: MS12-039: Vulnerabilities in Lync Could Allow Remote Code Execution (2707956)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
OpenVAS ID: 902842
OpenVAS Name: Microsoft Lync Remote Code Execution Vulnerabilities (2707956)
OpenVAS File: 🔍
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Qualys ID: 🔍
Qualys Name: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
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Patch: MS12-039
TippingPoint: 🔍
ISS Proventia IPS: 🔍
Fortigate IPS: 🔍
Timeline
03/22/2012 🔍06/12/2012 🔍
06/12/2012 🔍
06/12/2012 🔍
06/12/2012 🔍
06/12/2012 🔍
06/13/2012 🔍
02/14/2014 🔍
06/09/2021 🔍
Sources
Vendor: microsoft.comAdvisory: MS12-039
Researcher: Hamburgers Maccoy
Status: Confirmed
CVE: CVE-2012-1849 (🔍)
OVAL: 🔍
Vulnerability Center: 35303 - [MS12-039] Microsoft Lync Untrusted Search Path Vulnerability Allows Local Privilege Escalation, Medium
SecurityFocus: 53831 - Microsoft Lync CVE-2012-1849 DLL Loading Arbitrary Code Execution Vulnerability
Entry
Created: 02/14/2014 14:50Updated: 06/09/2021 14:38
Changes: 02/14/2014 14:50 (69), 04/13/2017 17:15 (10), 06/09/2021 14:38 (4)
Complete: 🔍
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