Symantec pcAnywhere 12.5/12.5.539/12.6.65/12.6.7580 awhost32 improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Symantec pcAnywhere 12.5/12.5.539/12.6.65/12.6.7580. It has been rated as critical. Affected by this issue is some unknown functionality of the component awhost32. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.

The weakness was published 01/24/2012 by Edward Torkington as SYM12-002 as confirmed advisory (Website). The advisory is shared for download at The public release has been coordinated with the vendor. This vulnerability is handled as CVE-2011-3478 since 09/14/2011. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by S2 Crew and been published 6 months after the advisory. It is declared as proof-of-concept. The exploit is available at As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 57796 (Symantec pcAnywhere Multiple Vulnerabilities (SYM12-002)), 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 119873 (Symantec pcAnywhere Buffer Overflow Vulnerability (SYM12-002)).

Applying a patch is able to eliminate this problem.Addressing this vulnerability is possible by firewalling tcp/5631. The best possible mitigation is suggested to be patching the affected component. 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 12901.

The vulnerability is also documented in the databases at SecurityTracker (ID 1026576), Vulnerability Center (SBV-34329), Tenable (57796) and Exploit-DB (19407). Similar entries are available at 4579, 4578 and 4670.




CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
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Vendor Base Score (Symantec): 🔍
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Class: Improper authentication
CWE: CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: S2 Crew
Download: 🔍

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Nessus ID: 57796
Nessus Name: Symantec pcAnywhere Multiple Vulnerabilities (SYM12-002)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Saint ID: exploit_info/symantec_pcanywhere_host_services_login
Saint Name: Symantec pcAnywhere Host Services Login Overflow

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: Patch
Status: 🔍

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0-Day Time: 🔍
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Firewalling: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
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09/14/2011 🔍
01/23/2012 +131 days 🔍
01/24/2012 +1 days 🔍
01/24/2012 +0 days 🔍
01/24/2012 +0 days 🔍
01/24/2012 +0 days 🔍
01/25/2012 +1 days 🔍
01/25/2012 +0 days 🔍
01/26/2012 +1 days 🔍
02/02/2012 +7 days 🔍
02/21/2012 +19 days 🔍
06/27/2012 +127 days 🔍
06/27/2012 +0 days 🔍
03/20/2021 +3188 days 🔍



Advisory: SYM12-002
Researcher: Edward Torkington
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2011-3478 (🔍)

SecurityTracker: 1026576 - Symantec pcAnywhere Bugs Let Remote Users Execute Arbitrary Code and Local Users Obtain Elevated Privileges
Vulnerability Center: 34329 - Symantec pcAnywhere 12.5-12.5.3 Remote Code Execution via TCP Port 5631, Critical
SecurityFocus: 51592 - Symantec pcAnywhere Host Services Remote Code Execution Vulnerability
Secunia: 47744 - Symantec pcAnywhere Multiple Vulnerabilities, Highly Critical
OSVDB: 78532

scip Labs:
See also: 🔍


Created: 02/21/2012 01:00 AM
Updated: 03/20/2021 03:56 PM
Changes: 02/21/2012 01:00 AM (94), 04/07/2017 05:53 PM (13), 03/20/2021 03:52 PM (4), 03/20/2021 03:56 PM (1)
Complete: 🔍


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