Skip to main content

Big Ip Domain Name System CVE-2020-27721

HIGH
2020-12-24 f5sirt@f5.com
7.5
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

1
CVE Published
Dec 24, 2020 - 15:15 nvd
HIGH 7.5

DescriptionNVD

In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS response.

AnalysisAI

In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS response. Affected products include: F5 Big-Ip Domain Name System, F5 Big-Ip Global Traffic Manager.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

CVE-2015-7547 HIGH POC
8.1 Feb 18

Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C

CVE-2025-20029 HIGH
8.7 Feb 05

F5 BIG-IP contains an authenticated command injection in the iControl REST API and TMOS Shell (tmsh) save command. Authe

CVE-2023-46747 CRITICAL POC
9.8 Oct 26

Undisclosed requests may bypass configuration utility authentication, allowing an attacker with network access to the BI

CVE-2022-1388 CRITICAL POC
9.8 May 05

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13

CVE-2021-22986 CRITICAL POC
9.8 Mar 31

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.

CVE-2022-41622 HIGH POC
8.8 Dec 07

In all versions, BIG-IP and BIG-IQ are vulnerable to cross-site request forgery (CSRF) attacks through iControl SOAP. Ra

CVE-2022-41800 HIGH POC
8.7 Dec 07

In all versions of BIG-IP, when running in Appliance mode, an authenticated user assigned the Administrator role may be

CVE-2019-10744 CRITICAL POC
9.1 Jul 26

Versions of lodash lower than 4.17.12 are vulnerable to Prototype Pollution. Rated critical severity (CVSS 9.1), this vu

CVE-2023-46748 HIGH POC
8.8 Oct 26

An authenticated SQL injection vulnerability exists in the BIG-IP Configuration utility which may allow an authenticated

CVE-2024-45844 HIGH POC
8.6 Oct 16

BIG-IP monitor functionality may allow an attacker to bypass access control restrictions, regardless of the port lockdow

CVE-2015-4047 HIGH POC
7.8 May 29

racoon/gssapi.c in IPsec-Tools 0.8.2 allows remote attackers to cause a denial of service (NULL pointer dereference and

CVE-2019-9075 HIGH POC
7.8 Feb 24

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.32. R

Share

CVE-2020-27721 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy