F5 BIG-IP APM 11.6.0/11.6.1/11.6.2/11.6.3 Virtual Server /vdesk orig_uri redirect

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5	$0-$5k	0.00

A vulnerability classified as critical has been found in F5 BIG-IP APM 11.6.0/11.6.1/11.6.2/11.6.3 (Firewall Software). Affected is an unknown functionality of the file /vdesk of the component Virtual Server. The manipulation of the argument orig_uri as part of a Parameter leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

On BIG-IP APM 11.6.0-11.6.3, an insecure AES ECB mode is used for orig_uri parameter in an undisclosed /vdesk link of APM virtual server configured with an access profile, allowing a malicious user to build a redirect URI value using different blocks of cipher texts.

The bug was discovered 09/12/2018. The weakness was published 09/13/2018 (Website). The advisory is shared for download at support.f5.com. This vulnerability is traded as CVE-2018-5548 since 01/11/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1204.001.

The vulnerability scanner Nessus provides a plugin with the ID 118693 (F5 Networks BIG-IP : BIG-IP APM redirect vulnerability (K66171422)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. 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 Tenable (118693) and SecurityFocus (BID 105353†). Similar entry is available at VDB-124021.

Productinfo

Type

Firewall Software

Vendor

Name

BIG-IP APM

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 118693
Nessus Name: F5 Networks BIG-IP : BIG-IP APM redirect vulnerability (K66171422)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/11/2018 🔍
09/07/2018 +238 days 🔍
09/07/2018 +0 days 🔍
09/12/2018 +5 days 🔍
09/13/2018 +0 days 🔍
09/13/2018 +0 days 🔍
09/14/2018 +1 days 🔍
11/02/2018 +49 days 🔍
05/16/2023 +1656 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K66171422
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5548 (🔍)
SecurityFocus: 105353 - F5 BIG-IP APM CVE-2018-5548 Open Redirect Vulnerability

See also: 🔍

Entryinfo

Created: 09/14/2018 07:17 AM
Updated: 05/16/2023 10:04 AM
Changes: 09/14/2018 07:17 AM (70), 03/23/2020 04:29 PM (6), 05/16/2023 10:04 AM (4)
Complete: 🔍
Cache ID: 44:B76:40