National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-1000007 Detail

Current 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 subsequest 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.

Source:  MITRE
Description Last Modified:  01/24/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securitytracker.com/id/1040274 Third Party Advisory VDB Entry
https://curl.haxx.se/docs/adv_2018-b3bf.html Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/01/msg00038.html Third Party Advisory
https://usn.ubuntu.com/3554-1/
https://usn.ubuntu.com/3554-2/
https://www.debian.org/security/2018/dsa-4098 Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-1000007
NVD Published Date:
01/24/2018
NVD Last Modified:
03/20/2018