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      Last Modified:  01/24/2018      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2018-1000007
Original release date:
01/24/2018
Last revised:
02/09/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
9.8 Critical
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (legend)
Impact Score:
5.9
Exploitability Score:
3.9
CVSS Version 3 Metrics:
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 Severity (version 2.0):
CVSS v2 Base Score:
5.0 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.securitytracker.com/id/1040274 Third Party Advisory; VDB Entry External Source SECTRACK 1040274
https://curl.haxx.se/docs/adv_2018-b3bf.html Patch; Vendor Advisory External Source CONFIRM https://curl.haxx.se/docs/adv_2018-b3bf.html
https://lists.debian.org/debian-lts-announce/2018/01/msg00038.html Third Party Advisory External Source MLIST [debian-lts-announce] 20180129 [SECURITY] [DLA 1263-1] curl security update
https://www.debian.org/security/2018/dsa-4098 Third Party Advisory External Source DEBIAN DSA-4098

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Change History 4 change records found - show changes