F5 BIG-IP 10.0.0/10.2.4/11.0.0/11.2.1 XML Parser server.php information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in F5 BIG-IP 10.0.0/10.2.4/11.0.0/11.2.1. Affected is an unknown function of the file server.php of the component XML Parser. The manipulation results in information disclosure. This vulnerability is identified as CVE-2012-2997. The attack can be executed remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in F5 BIG-IP 10.0.0/10.2.4/11.0.0/11.2.1 (Firewall Software). Affected is an unknown code block of the file server.php of the component XML Parser. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

XML External Entity (XXE) vulnerability in sam/admin/vpe2/public/php/server.php in F5 BIG-IP 10.0.0 through 10.2.4 and 11.0.0 through 11.2.1 allows remote authenticated users to read arbitrary files via a crafted XML file.

The weakness was released 01/22/2013 by Stefan Viehböck with SEC Consult as 92 as confirmed mailinglist post (Bugtraq). The advisory is available at seclists.org. The public release was coordinated with the vendor. This vulnerability is traded as CVE-2012-2997 since 05/30/2012. The exploitability is told to be easy. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. Technical details and a public exploit are known. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

After immediately, there has been an exploit disclosed. The exploit is shared for download at sec-consult.com. It is declared as proof-of-concept. By approaching the search of inurl:server.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 78140 (F5 Networks BIG-IP : XML External Entity Injection (XXE) from authenticated source vulnerability (K14138)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120844 (F5 BIG-IP XML External Entity Injection Vulnerability(SOL14138)).

Upgrading to version 11.2.0 HF3 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at support.f5.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (81426), Exploit-DB (38233), Tenable (78140), SecurityFocus (BID 57496†) and OSVDB (89447†). Entry connected to this vulnerability is available at VDB-7445. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 78140
Nessus Name: F5 Networks BIG-IP : XML External Entity Injection (XXE) from authenticated source vulnerability (K14138)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: BIG-IP 11.2.0 HF3
Patch: support.f5.com

Timelineinfo

05/30/2012 🔍
01/21/2013 +236 days 🔍
01/21/2013 +0 days 🔍
01/21/2013 +0 days 🔍
01/22/2013 +1 days 🔍
01/22/2013 +0 days 🔍
01/22/2013 +0 days 🔍
01/24/2013 +2 days 🔍
02/27/2013 +34 days 🔍
01/21/2014 +328 days 🔍
10/10/2014 +262 days 🔍
12/31/2024 +3735 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: 92
Researcher: Stefan Viehböck
Organization: SEC Consult
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-2997 (🔍)
GCVE (CVE): GCVE-0-2012-2997
GCVE (VulDB): GCVE-100-7446
X-Force: 81426
SecurityFocus: 57496 - F5 Networks BIG-IP CVE-2012-2997 XML External Entity Injection Vulnerability
Secunia: 51986 - F5 Products XML Entity References Information Disclosure Vulnerability, Less Critical
OSVDB: 89447
SecurityTracker: 1028025 - F5 BIG-IP Input Validation Flaws Lets Remote Users Inject SQL Commands and Download Files
Vulnerability Center: 38569 - F5 Networks Big-IP XML External Entity Injection Vulnerability Allows Remote Information Disclosure, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/24/2013 14:29
Updated: 12/31/2024 05:15
Changes: 01/24/2013 14:29 (57), 08/09/2017 14:07 (32), 04/22/2021 13:22 (2), 08/06/2024 22:15 (16), 12/31/2024 05:15 (2)
Complete: 🔍
Committer: olku
Cache ID: 216:F06:103

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