CVE-2021-28543
Quick assessment
Affected
n/a n/a
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.
Martin Blix Grydeland varnish-modules是 （Martin Blix Grydeland）开源的一个应用软件。用于描述具有其他功能的HTTP请求/响应策略。 varnish-modules 存在安全漏洞，该漏洞允许远程攻击者在某些配置中导致拒绝服务(守护进程重启)。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-28543
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Varnish varnish-modules before 0.17.1 allows remote attackers to cause a denial of service (daemon restart) in some configurations. This does not affect organizations that only install the Varnish Cache product; however, it is common to install both Varnish Cache and varnish-modules. Specifically, an assertion failure or NULL pointer dereference can be triggered in Varnish Cache through the varnish-modules header.append() and header.copy() functions. For some Varnish Configuration Language (VCL) files, this gives remote clients an opportunity to cause a Varnish Cache restart. A restart reduces overall availability and performance due to an increased number of cache misses, and may cause higher load on backend servers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Martin Blix Grydeland varnish-modules 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Martin Blix Grydeland varnish-modules是 （Martin Blix Grydeland）开源的一个应用软件。用于描述具有其他功能的HTTP请求/响应策略。 varnish-modules 存在安全漏洞，该漏洞允许远程攻击者在某些配置中导致拒绝服务(守护进程重启)。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2021-28543
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2021-28543 (1)
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPFBRQUJNWHCB3GQHSSAPRLQU6Q6PY43/ vendor-advisory x_refsource_FEDORA
Other References for CVE-2021-28543 (1)
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https://varnish-cache.org/security/VSV00006.html x_refsource_MISC
Same Patch Batch · n/a · 2021-03-16 · 15 CVEs total
| CVE-2020-24263 | Portainer 权限许可和访问控制问题漏洞 | |
| CVE-2020-24264 | Portainer 访问控制错误漏洞 | |
| CVE-2021-22887 | Pulse Secure PSA5000 and PSA7000 安全漏洞 | |
| CVE-2021-25916 | Paul Humphreys patchmerge 安全漏洞 | |
| CVE-2021-27938 | Silverstripe CMS 跨站脚本漏洞 | |
| CVE-2020-28899 | ZyXEL LTE4506-M606 访问控制错误漏洞 | |
| CVE-2021-28380 | TYPO3 跨站脚本漏洞 | |
| CVE-2021-28381 | TYPO3 SQL注入漏洞 | |
| CVE-2021-28294 | Egavilan Media Bakeshop Online Ordering System 代码问题漏洞 | |
| CVE-2021-28295 | Egavilan Media Bakeshop Online Ordering System SQL注入漏洞 | |
| CVE-2021-3127 | NATS Server 访问控制错误漏洞 | |
| CVE-2021-20218 | Rohan Kumar kubernetes-client 路径遍历漏洞 | |
| CVE-2019-3897 | 红帽 Red Hat 安全漏洞 | |
| CVE-2021-3344 | Red Hat OpenShift Container Platform 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-28543
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