Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-28321

Quick assessment

Affected
n/a https://github.com/curl/curl
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.

curl是一款用于从服务器传输数据或向服务器传输数据的工具。 curl 存在安全漏洞，该漏洞源于IDN 通配符匹配可能导致不正确的证书验证。

AI Predicted 5.9 Difficulty: Moderate EPSS 1.81% · P78

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-28321

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An improper certificate validation vulnerability exists in curl <v8.1.0 in the way it supports matching of wildcard patterns when listed as "Subject Alternative Name" in TLS server certificates. curl can be built to use its own name matching function for TLS rather than one provided by a TLS library. This private wildcard matching function would match IDN (International Domain Name) hosts incorrectly and could as a result accept patterns that otherwise should mismatch. IDN hostnames are converted to puny code before used for certificate checks. Puny coded names always start with `xn--` and should not be allowed to pattern match, but the wildcard check in curl could still check for `x*`, which would match even though the IDN name most likely contained nothing even resembling an `x`.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
curl 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
curl是一款用于从服务器传输数据或向服务器传输数据的工具。 curl 存在安全漏洞，该漏洞源于IDN 通配符匹配可能导致不正确的证书验证。
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
- https://github.com/curl/curl Fixed in 8.1.0 -

II. Public POCs for CVE-2023-28321

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-28321

请登录查看更多情报信息。

Vendor Advisories for CVE-2023-28321 (5)

Mailing List Discussions for CVE-2023-28321 (6)

Other References for CVE-2023-28321 (1)

Same Patch Batch · n/a · 2023-05-26 · 26 CVEs total

CVE-2022-46945 9.1 CRITICAL NagVis 路径遍历漏洞
CVE-2023-2283 libssh 授权问题漏洞
CVE-2023-27311 NetApp BlueXP Cloud 路径遍历漏洞
CVE-2023-2898 Linux kernel 代码问题漏洞
CVE-2023-33247 Talend Data Catalog 安全漏洞
CVE-2023-33255 Papaya 跨站脚本漏洞
CVE-2023-28319 libcurl 资源管理错误漏洞
CVE-2023-28320 libcurl 资源管理错误漏洞
CVE-2023-28322 libcurl 安全漏洞
CVE-2023-1664 Red Hat Keycloak 信任管理问题漏洞
CVE-2023-1667 libssh 代码问题漏洞
CVE-2023-1981 Avahi 资源管理错误漏洞
CVE-2023-20868 Vmware NSX-T 跨站脚本漏洞
CVE-2023-22970 Bottle 安全漏洞
CVE-2023-33394 skycaiji 跨站脚本漏洞
CVE-2023-33439 Faculty Evaluation System SQL注入漏洞
CVE-2023-33440 Faculty Evaluation System 安全漏洞
CVE-2023-33720 MP4v2 资源管理错误漏洞
CVE-2023-20882 Cloud Foundry 安全漏洞
CVE-2023-20883 Spring Framework 资源管理错误漏洞

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: https://github.com/curl/curl
Same vendor: n/a
Same weakness: CWE-295

V. Comments for CVE-2023-28321

No comments yet

Leave a comment