CVE-2018-1000007 Information disclosure in n/a
libcurl leaks sensitive authentication headers to third-party hosts during HTTP redirects, potentially exposing credentials to attackers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-1000007?
CVE-2018-1000007 is a critical vulnerability in Canonical Ubuntu Linux, published on 24 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2018-1000007?
It affects 14 products.
Linux distribution packages (9)
curl SUSE:Linux Enterprise Desktop 12 SP2 | All versions | 7.37.0-37.14.1 |
curl SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 7.37.0-37.14.1 |
curl SUSE:Linux Enterprise Server 12 SP2 | All versions | 7.37.0-37.14.1 |
curl SUSE:Linux Enterprise Server 12 SP3 | All versions | 7.37.0-37.14.1 |
curl SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | All versions | 7.37.0-37.14.1 |
curl SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 7.37.0-37.14.1 |
curl SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 7.37.0-37.14.1 |
curl SUSE:Linux Enterprise Software Development Kit 12 SP2 | All versions | 7.37.0-37.14.1 |
curl SUSE:Linux Enterprise Software Development Kit 12 SP3 | All versions | 7.37.0-37.14.1 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Fujitsu M10-1 Firmware, Fujitsu M10-4 Firmware, Fujitsu M10-4s Firmware, Fujitsu M12-1 Firmware and 8 more.
How do I fix CVE-2018-1000007?
Upgrade to a fixed version.
Is CVE-2018-1000007 being exploited?
There is no known exploitation of CVE-2018-1000007 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as CURL-CVE-2018-1000007, DEBIAN-CVE-2018-1000007, DLA-1263-1, DSA-4098-1, GHSA-g7x2-hrfp-pv5f, SUSE-SU-2018:0217-1 and 1 more.