Symantec Backup Exec 12.5 input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Symantec Backup Exec 12.5. Impacted is an unknown function. This manipulation causes input validation. This vulnerability is registered as CVE-2011-0546. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in Symantec Backup Exec 12.5 (Backup Software). It has been declared as critical. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Symantec Backup Exec 11.0, 12.0, 12.5, 13.0, and 13.0 R2 does not validate identity information sent between the media server and the remote agent, which allows man-in-the-middle attackers to execute NDMP commands via unspecified vectors.

The weakness was published 05/31/2011 by Nibin (Website). It is possible to read the advisory at symantec.com. This vulnerability is known as CVE-2011-0546 since 01/20/2011. The exploitation appears to be difficult. The attack can only be initiated within the local network. A single authentication is required for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Nibin and been published 2 months after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 55116 (Symantec Backup Exec Server Unauthorized Access (SYM11-006)), 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 119564 (Symantec Backup Exec Communication Protocol Privilege Escalation Vulnerability(SYM11-006)).

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 (67662), Exploit-DB (17517), Tenable (55116), SecurityFocus (BID 47824†) and Secunia (SA44698†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.5

VulDB Base Score: 9.0
VulDB Temp Score: 8.5
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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55116
Nessus Name: Symantec Backup Exec Server Unauthorized Access (SYM11-006)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 801798
OpenVAS Name: Symantec Backup Exec Products Arbitrary Command Execution vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

01/20/2011 🔍
05/26/2011 +126 days 🔍
05/27/2011 +1 days 🔍
05/31/2011 +4 days 🔍
05/31/2011 +0 days 🔍
05/31/2011 +0 days 🔍
06/13/2011 +13 days 🔍
06/14/2011 +1 days 🔍
07/09/2011 +25 days 🔍
07/09/2011 +0 days 🔍
03/23/2015 +1353 days 🔍
01/18/2025 +3589 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: symantec.com
Researcher: Nibin
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-0546 (🔍)
GCVE (CVE): GCVE-0-2011-0546
GCVE (VulDB): GCVE-100-57535
X-Force: 67662
SecurityFocus: 47824 - Symantec Backup Exec for Windows Servers Unauthorized Access Vulnerability
Secunia: 44698 - Symantec Backup Exec Products Media Server NDMP Command Execution Weakness, Not Critical
Vulnerability Center: 31750 - Symantec Backup Exec Security Bypass Vulnerability Allows Man-In-The-Middle NDMP Commands Execution, Medium

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

Entryinfo

Created: 03/23/2015 16:50
Updated: 01/18/2025 23:15
Changes: 03/23/2015 16:50 (61), 03/24/2017 07:50 (19), 11/07/2021 21:53 (3), 06/08/2024 08:24 (15), 01/18/2025 23:15 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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