F5 BIG-IP ASM 11.4.x/11.5.x ASM Response Body cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

A vulnerability has been found in F5 BIG-IP ASM 11.4.x/11.5.x (Firewall Software) and classified as problematic. Affected by this vulnerability is an unknown code of the component ASM Response Body Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

Cross-site scripting (XSS) vulnerability in F5 BIG-IP Application Security Manager (ASM) before 11.6 allows remote attackers to inject arbitrary web script or HTML via the Response Body field when creating a new user account.

The weakness was released 01/13/2015 by Peter Lapp as File 129911 as confirmed advisory (Packetstorm). It is possible to read the advisory at packetstormsecurity.com. This vulnerability is known as CVE-2015-1050 since 01/15/2015. The attack can be launched remotely. A single authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK. The advisory points out:

The F5 ASM is a web application firewall designed to protect web applications from attacks. It allows for a custom HTML page to be displayed to end users when they trigger a violation. The configuration page for the custom response contains a text input for HTML and a "Show" button that allows the editor to preview the page. This functionality is vulnerable to Cross Site Scripting.

A public exploit has been developed by Peter Lapp in Javascript and been published immediately after the advisory. It is possible to download the exploit at packetstormsecurity.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 218 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 81597 (F5 Networks BIG-IP : ASM < 11.6.0 Response Body XSS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks.

Upgrading to version 11.6 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (99907) and Tenable (81597). Entry connected to this vulnerability is available at 68635.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
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CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Peter Lapp
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
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Current Price Estimation: 🔍

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Nessus ID: 81597
Nessus Name: F5 Networks BIG-IP : ASM < 11.6.0 Response Body XSS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 800325
OpenVAS Name: F5 BIG-IP - ASM cross-site scripting (XSS) vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: BIG-IP ASM 11.6

Timelineinfo

06/09/2014 🔍
06/18/2014 +9 days 🔍
01/12/2015 +208 days 🔍
01/13/2015 +1 days 🔍
01/13/2015 +0 days 🔍
01/15/2015 +2 days 🔍
01/15/2015 +0 days 🔍
01/15/2015 +0 days 🔍
03/02/2022 +2603 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: File 129911
Researcher: Peter Lapp
Status: Confirmed

CVE: CVE-2015-1050 (🔍)
X-Force: 99907 - F5 BIG-IP ASM Response Body cross-site scripting, Low Risk
SecurityTracker: 1031551
SecurityFocus: 72014 - F5 Networks BIG-IP Application Security Manager (ASM) HTML Injection Vulnerability

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

Entryinfo

Created: 01/15/2015 11:32
Updated: 03/02/2022 13:33
Changes: 01/15/2015 11:32 (59), 07/09/2017 08:12 (20), 03/02/2022 13:28 (3), 03/02/2022 13:33 (1)
Complete: 🔍
Cache ID: 3:465:103

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