Apache htpasswd buffer overflow
| apache-htpasswd-bo (17413) |  Medium Risk |
Description:
Apache HTTP Server is vulnerable to a stack-based buffer overflow in the htpasswd.c file, caused by improper bounds checking of the user and passwd variables. A local attacker, within the same permissions assigned to the attacker, could exploit this vulnerability to overflow a buffer and execute arbitrary code on the system.
*CVSS:
| Base Score: | 2.5 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | Partial |
| Availability Impact: | None |
| Temporal Score: | 2 |
| Exploitability: | Proof-Of-Concept |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Other
Remedy:
For Ubuntu Linux:
Refer to USN-133-1 for patch, upgrade, or suggested workaround information. See References.
References:
- Apache HTTP Server Project Web site: Apache HTTPD Project - The Apache HTTPD Server Project.
- BugTraq Mailing List, Fri Oct 29 2004 - 16:53:16 CDT: Re: local buffer overflow in htpasswd for apache 1.3.31 not fixed in .33?.
- Full-Disclosure Mailing List, Thu Sep 16 2004 - 11:23:03 CDT: FlowSecurity.org: Local Stack Overflow on htpasswd apache 1.3.31 advsory..
- BID-13777: Apache HTPasswd User Command Line Argument Buffer Overflow Vulnerability
- BID-13778: Apache HTPasswd Password Command Line Argument Buffer Overflow Vulnerability
- USN-133-1: Apache utility vulnerability
Platforms Affected:
- Apache HTTP Server 1.3
- Apache HTTP Server 1.3.0
- Apache HTTP Server 1.3.1
- Apache HTTP Server 1.3.10
- Apache HTTP Server 1.3.11
- Apache HTTP Server 1.3.12
- Apache HTTP Server 1.3.13
- Apache HTTP Server 1.3.14
- Apache HTTP Server 1.3.15
- Apache HTTP Server 1.3.16
- Apache HTTP Server 1.3.17
- Apache HTTP Server 1.3.18
- Apache HTTP Server 1.3.19
- Apache HTTP Server 1.3.2
- Apache HTTP Server 1.3.20
- Apache HTTP Server 1.3.22
- Apache HTTP Server 1.3.23
- Apache HTTP Server 1.3.24
- Apache HTTP Server 1.3.25
- Apache HTTP Server 1.3.26
- Apache HTTP Server 1.3.27
- Apache HTTP Server 1.3.28
- Apache HTTP Server 1.3.29
- Apache HTTP Server 1.3.3
- Apache HTTP Server 1.3.30
- Apache HTTP Server 1.3.31
- Apache HTTP Server 1.3.32
- Apache HTTP Server 1.3.33
- Canonical Ubuntu 4.10
Reported:
Sep 16, 2004
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* 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.