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| Vulnerability ID | VCID-wyfa-5v5x-aaam |
| Aliases |
CVE-2011-3368
|
| Summary | The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42, 2.0.x through 2.0.64, and 2.2.x through 2.2.21 does not properly interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern matches for configuration of a reverse proxy, which allows remote attackers to send requests to intranet servers via a malformed URI containing an initial @ (at sign) character. |
| Status | Published |
| Exploitability | 2.0 |
| Weighted Severity | 6.2 |
| Risk | 10.0 |
| Affected and Fixed Packages | Package Details |
| CWE-20 | Improper Input Validation |
| Data source | Exploit-DB |
|---|---|
| Date added | Oct. 11, 2011 |
| Description | Apache mod_proxy - Reverse Proxy Exposure |
| Ransomware campaign use | Known |
| Source publication date | Oct. 11, 2011 |
| Exploit type | remote |
| Platform | multiple |
| Source update date | Jan. 31, 2017 |
| Data source | Metasploit |
|---|---|
| Description | Scan for poorly configured reverse proxy servers. By default, this module attempts to force the server to make a request with an invalid domain name. Then, if the bypass is successful, the server will look it up and of course fail, then responding with a status code 502. A baseline status code is always established and if that baseline matches your test status code, the injection attempt does not occur. "set VERBOSE true" if you are paranoid and want to catch potential false negatives. Works best against Apache and mod_rewrite |
| Note | {}
|
| Ransomware campaign use | Unknown |
| Source URL | https://github.com/rapid7/metasploit-framework/tree/master/modules/auxiliary/scanner/http/rewrite_proxy_bypass.rb |
| Exploitability (E) | Access Vector (AV) | Access Complexity (AC) | Authentication (Au) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|
high functional unproven proof_of_concept not_defined |
local adjacent_network network |
high medium low |
multiple single none |
none partial complete |
none partial complete |
none partial complete |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Percentile | 0.99005 |
| EPSS Score | 0.79132 |
| Published At | March 28, 2025, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| There are no relevant records. | ||||