F5 BIG-IP up to 14.1.4/15.1.3/16.0.1 Configuration Utility cross site scripting

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.
4.1	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in F5 BIG-IP up to 14.1.4/15.1.3/16.0.1. This vulnerability affects unknown code of the component Configuration Utility. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2021-23027. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in F5 BIG-IP up to 14.1.4/15.1.3/16.0.1 (Firewall Software). It has been classified as problematic. Affected is an unknown code block of the component Configuration Utility. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity.

The weakness was released 08/26/2021 as K24301698. The advisory is shared for download at support.f5.com. This vulnerability is traded as CVE-2021-23027. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 14.1.4.3, 15.1.3.1, 16.0.1.2 or 16.1.0 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Firewall Software

Vendor

Name

BIG-IP

Version

License

commercial

Website

Vendor: https://f5.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BIG-IP 14.1.4.3/15.1.3.1/16.0.1.2/16.1.0

Timelineinfo

01/06/2021 🔍
08/26/2021 +231 days 🔍
08/26/2021 +0 days 🔍
08/29/2021 +3 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K24301698
Status: Confirmed

CVE: CVE-2021-23027 (🔍)
GCVE (CVE): GCVE-0-2021-23027
GCVE (VulDB): GCVE-100-181536

Entryinfo

Created: 08/26/2021 13:59
Updated: 08/29/2021 18:49
Changes: 08/26/2021 13:59 (40), 08/29/2021 18:49 (1)
Complete: 🔍
Cache ID: 216::103