Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Commvault Edge Server deserializes cookie data insecurely
Informations
Name VU#866432 First vendor Publication 2015-11-03
Vendor VU-CERT Last vendor Modification 2015-11-06
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 10 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Vulnerability Note VU#866432

Commvault Edge Server deserializes cookie data insecurely

Original Release date: 03 Nov 2015 | Last revised: 06 Nov 2015

Overview

Commvault Edge Server, version 10 R2, deserializes untrusted, user-provided cookie data, resulting in arbitrary OS command execution with the web server's privileges.

Description

CWE-502: Deserialization of Untrusted Data - CVE-2015-7253

Commvault Edge Server, version 10 R2, deserializes user-provided cookie data without properly validating it first. An unauthenticated attacker with access to the CommVault Edge Server Web Console can provide specially crafted cookie data that, when deserialized, results in the execution of arbitrary OS commands with the web server's privileges.

Impact

A remote, unauthenticated attacker can provide specially crafted cookie data that, when deserialized, will execute arbitrary OS commands with the privileges of the web server.

Solution

Apply an update

The vendor has issued updates to address this vulnerability. Users are encouraged to update to the latest release, but those unable or unwilling to do so should consider the following workaround.

Restrict access

As a general good security practice, only allow connections from trusted hosts and networks.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
CommvaultAffected17 Sep 201503 Nov 2015
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

GroupScoreVector
Base10.0AV:N/AC:L/Au:N/C:C/I:C/A:C
Temporal8.5E:POC/RL:U/RC:UR
Environmental2.1CDP:ND/TD:L/CR:ND/IR:ND/AR:ND

References

  • http://www.commvault.com/
  • https://cwe.mitre.org/data/definitions/502.html
  • http://docs.commvault.com/commvault/v10/article?p=announcement/announcements.htm#Security

Credit

Thanks to Markus Wulftange and Matthias Kaiser of Code White for reporting this vulnerability.

This document was written by Joel Land.

Other Information

  • CVE IDs:CVE-2015-7253
  • Date Public:03 Nov 2015
  • Date First Published:03 Nov 2015
  • Date Last Updated:06 Nov 2015
  • Document Revision:15

Feedback

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Original Source

Url : http://www.kb.cert.org/vuls/id/866432

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-78 Improper Sanitization of Special Elements used in an OS Command ('OS Command Injection') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Alert History

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Date Informations
2015-11-06 17:21:07
  • Multiple Updates
2015-11-04 21:23:57
  • Multiple Updates
2015-11-04 17:21:08
  • Multiple Updates
2015-11-04 09:27:25
  • Multiple Updates
2015-11-04 00:21:26
  • First insertion