Permissions, Privileges, and Access Controls in Trustwave ModSecurity
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2012-4528 |
| CWE-ID | CWE-264 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
ModSecurity Server applications / IDS/IPS systems, Firewalls and proxy servers |
| Vendor | Trustwave |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU43224
Risk: Medium
CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2012-4528
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: Yes
DescriptionThe vulnerability allows a remote non-authenticated attacker to manipulate data.
The mod_security2 module before 2.7.0 for the Apache HTTP Server allows remote attackers to bypass rules, and deliver arbitrary POST data to a PHP application, via a multipart request in which an invalid part precedes the crafted data.
MitigationInstall update from vendor's website.
Vulnerable software versionsModSecurity: 2.0.0 - 2.6.8
External linkshttp://lists.fedoraproject.org/pipermail/package-announce/2012-November/093011.html
http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html
http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/branches/2.7.x/CHANGES
http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/trunk/apache2/msc_multipart.c?sortby=date&r1=2081&r2=2080&pathrev=2081
http://mod-security.svn.sourceforge.net/viewvc/mod-security?view=revision&sortby=date&revision=2081
http://seclists.org/fulldisclosure/2012/Oct/113
http://www.openwall.com/lists/oss-security/2012/10/18/14
http://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20121017-0_mod_security_ruleset_bypass.txt
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
