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CVE-2021-23047

Quick assessment

Affected
n/a BIG-IP APM
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

F5 BIG-IP APM是美国F5公司的一套访问和安全解决方案。该产品提供统一访问关键业务应用和网络的功能。 F5 BIG-IP APM存在安全漏洞。该漏洞的存在是由于对包含授权信息访问 (AIA) 的证书的在线证书状态协议 (OCSP) 验证中存在内存泄漏。远程攻击者可以发送特制的 OCSP AIA 请求并在目标系统上造成拒绝服务条件。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.60% · P47

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-23047

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
On version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, and all versions of 13.1.x, 12.1.x and 11.6.x, when BIG-IP APM performs Online Certificate Status Protocol (OCSP) verification of a certificate that contains Authority Information Access (AIA), undisclosed requests may cause an increase in memory use. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
F5 BIG-IP APM资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F5 BIG-IP APM是美国F5公司的一套访问和安全解决方案。该产品提供统一访问关键业务应用和网络的功能。 F5 BIG-IP APM存在安全漏洞。该漏洞的存在是由于对包含授权信息访问 (AIA) 的证书的在线证书状态协议 (OCSP) 验证中存在内存泄漏。远程攻击者可以发送特制的 OCSP AIA 请求并在目标系统上造成拒绝服务条件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- BIG-IP APM 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, and all versions of 13.1.x, 12.1.x and 11.6.x -

II. Public POCs for CVE-2021-23047

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III. Intelligence Information for CVE-2021-23047

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Vendor Advisories for CVE-2021-23047 (1)

Same Patch Batch · n/a · 2021-09-14 · 40 CVEs total

CVE-2021-23049 F5 BIG-IP资源管理错误漏洞
CVE-2020-21050 Libsixel缓冲区错误漏洞
CVE-2020-21049 libsixel缓冲区错误漏洞
CVE-2020-21048 libsixel 安全漏洞
CVE-2021-41077 Travis CI 安全漏洞
CVE-2021-23042 F5 BIG-IP资源管理错误漏洞
CVE-2021-23040 F5 BIG-IP APM和F5 BIG-IP SQL注入漏洞
CVE-2021-23043 F5 BIG-IP 路径遍历漏洞
CVE-2021-23046 F5 BIG-IP 日志信息泄露漏洞
CVE-2021-23041 F5 BIG-IP 跨站脚本漏洞
CVE-2021-23044 F5 BIG-IP 输入验证错误漏洞
CVE-2021-23048 F5 BIG-IP输入验证错误漏洞
CVE-2021-23050 F5 BIG-IP 跨站请求伪造漏洞
CVE-2021-23053 F5 BIG-IP 资源管理错误漏洞
CVE-2021-23052 F5 BIG-IP APM输入验证错误漏洞
CVE-2021-23051 F5 BIG-IP输入验证错误漏洞
CVE-2021-36581 Kooboo代码问题漏洞
CVE-2021-36582 Kooboo 代码问题漏洞
CVE-2021-32202 CS-Cart 跨站脚本漏洞
CVE-2021-41072 squashfs-tools 后置链接漏洞

Showing top 20 of 40 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: BIG-IP APM
Same vendor: n/a
Same weakness: CWE-400

V. Comments for CVE-2021-23047

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