CVE-2021-22991
F5 BIG-IP Traffic Management Microkernel Buffer Ov - [Actively Exploited]
Description
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 12.1.x before 12.1.5.3, undisclosed requests to a virtual server may be incorrectly handled by the Traffic Management Microkernel (TMM) URI normalization, which may trigger a buffer overflow, resulting in a DoS attack. In certain situations, it may theoretically allow bypass of URL based access control or remote code execution (RCE). Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
INFO
Published Date :
March 31, 2021, 6:15 p.m.
Last Modified :
Aug. 8, 2023, 2:21 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
The Traffic Management Microkernel of BIG-IP ASM Risk Engine has a buffer overflow vulnerability, leading to a bypassing of URL-based access controls.
Apply updates per vendor instructions.
Public PoC/Exploit Available at Github
CVE-2021-22991 has a 5 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-22991
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-22991.
| URL | Resource |
|---|---|
| https://support.f5.com/csp/article/K56715231 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
安全类各家文库大乱斗
HTML CSS JavaScript Go Python Shell C
主流供应商的一些攻击性漏洞汇总
None
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-22991 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-22991 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 12, 2022
Action Type Old Value New Value Changed CWE CWE-120 CWE-20 -
Initial Analysis by [email protected]
Apr. 05, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://support.f5.com/csp/article/K56715231 No Types Assigned https://support.f5.com/csp/article/K56715231 Vendor Advisory Added CWE NIST CWE-120 Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1 *cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (excluding) 12.1.5.3 *cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (excluding) 13.1.3.6 *cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* versions from (including) 14.1.0 up to (excluding) 14.1.4 *cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* versions from (including) 15.1.0 up to (excluding) 15.1.2.1 *cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.0.1.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-22991 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-22991
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
80.38 }} -2.23%
score
0.98369
percentile