CVE-2018-1000007

curl: HTTP authentication leak in redirects

Published Jan 24, 2018 CVSS 3.1 · 9.8 Critical EPSS 9.9% KEV · Not listed
Description
libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties. When asked to send custom headers in its HTTP requests, libcurl will send that set of headers first to the host in the initial URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the `Location:` response header value. Sending the same set of headers to subsequent hosts is in particular a problem for applications that pass on custom `Authorization:` headers, as this header often contains privacy sensitive information or data that could allow others to impersonate the libcurl-using client's request.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-4098-1 curl security update
EUVD EUVD EUVD-2018-1778 libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties. When asked to send custom headers in its HTTP requests, libcurl will send that set of headers first to the host in the initial URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the `Location:` response header value. Sending the same set of headers to subsequent hosts is in particular a problem for applications that pass on custom `Authorization:` headers, as this header often contains privacy sensitive information or data that could allow others to impersonate the libcurl-using client's request.
Ubuntu USN Ubuntu USN USN-3554-1 curl vulnerabilities
Ubuntu USN Ubuntu USN USN-3554-2 curl vulnerability
History
Type Values Removed Values Added
Metrics epss

{'score': 0.03066}

epss

{'score': 0.03148}