Information disclosure in HAProxy - CVE-2018-11469
Published: May 31, 2018 / Updated: June 1, 2018
Vulnerability identifier: #VU13126
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-11469
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists in the check_request_for_cacheability function of HAProxy due to improper caching of responses for requests that include an authorization header by the check_request_for_cacheability function, as defined in the proto_http.csource code file. A remote attacker can send a specially crafted request and access sensitive information, which could be used to conduct further attacks.
Affected software
HAProxy
Opensuse
Fedora
haproxy
rh-haproxy18-haproxy (Red Hat package)
Opensuse
Fedora
haproxy
rh-haproxy18-haproxy (Red Hat package)
How to mitigate CVE-2018-11469
Install update from vendor's website.
haproxy - update to 1.8.12-2.fc28
rh-haproxy18-haproxy (Red Hat package) - update to 1.8.17-1.el7
rh-haproxy18-haproxy (Red Hat package) - update to 1.8.17-1.el7