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CVE-2023-46218

Quick assessment

Affected
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 7.46.0到 8.4.0版本存在安全漏洞，该漏洞源于 curl函数中存在混合大小写缺陷，允许恶意 HTTP server在curl 中设置 super cookies，然后传回更多的信息。

AI Predicted 6.5 Difficulty: Easy EPSS 1.69% · P76

Affected Version Matrix 2

VendorProduct Version RangeStatus
curl curl 8.4.0≤ 8.4.0 affected
7.46.0< 7.46.0 unaffected
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I. Basic Information for CVE-2023-46218

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
curl 安全漏洞
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 7.46.0到 8.4.0版本存在安全漏洞，该漏洞源于 curl函数中存在混合大小写缺陷，允许恶意 HTTP server在curl 中设置 super cookies，然后传回更多的信息。
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
curl curl 8.4.0 ~ 8.4.0 -

II. Public POCs for CVE-2023-46218

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III. Intelligence Information for CVE-2023-46218

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Vendor Advisories for CVE-2023-46218 (2)

Mailing List Discussions for CVE-2023-46218 (2)

Other References for CVE-2023-46218 (2)

IV. Related Vulnerabilities

Same product: curl
Same vendor: curl

V. Comments for CVE-2023-46218

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