G/PGP Encryption Plugin for SquirrelMail gpg_hook_functions.php command execution
| squirrelmail-gpgp-hook-command-execution (35363) |  Medium Risk |
Description:
The G/PGP Encryption Plugin for SquirrelMail could allow a remote attacker to execute arbitrary commands on the system, caused by improper validation of user-supplied input by the gpg_hook_functions.php script's exec function. By persuading a victim to open a specially-crafted email, a remote attacker could exploit this vulnerability to execute arbitrary commands on the system with the privileges of the Web server.
*CVSS:
| Base Score: | 5.6 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 4.1 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of G/PGP Encryption Plugin for SquirrelMail (2.1 or later), available from the G/PGP Encryption Plugin for SquirrelMail Web site. See References.
References:
- G/PGP Encryption Plugin for SquirrelMail Web site: SquirrelMail - Webmail for Nuts!.
- iDefense Labs PUBLIC ADVISORY: 07.11.07: SquirrelMail G/PGP Plugin gpg_check_sign_pgp_mime() Command Injection Vulnerability.
- BID-24874: SquirrelMail G/PGP Encryption Plug-in Multiple Remote Command Execution Vulnerabilities
- CVE-2007-3778: The G/PGP (GPG) Plugin 2.0, and 2.1dev before 20060912, for Squirrelmail allows remote attackers to execute arbitrary commands via shell metacharacters in the messageSignedText parameter to the gpg_check_sign_pgp_mime function in gpg_hook_functions.php. NOTE: a parameter value can be set in the contents of an e-mail message.
- SA26035: SquirrelMail G/PGP Encryption Plugin Multiple Vulnerabilities
- VUPEN/ADV-2007-2513: SquirrelMail G/PGP Encryption Plugin Multiple Command Execution Vulnerabilities
Platforms Affected:
- SquirrelMail G/PGP Encryption Plugin for SquirrelMail 2.0
Reported:
Jul 11, 2007
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.