Information disclosure in ntp - CVE-2016-1550
Published: June 10, 2021
Vulnerability identifier: #VU54030
CSH Severity: Medium
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-2016-1550
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in the message authentication functionality. A remote attacker can send a series of crafted messages to attempt to recover the message digest key.
Affected software
ntp
SIMATIC NET CP 443-1 OPC UA
SIMATIC NET CP 443-1 OPC UA
How to mitigate CVE-2016-1550
Install updates from vendor's website.
ntp - update to 4.2.8p5
External References
- http://www.talosintelligence.com/reports/TALOS-2016-0084/
- http://www.securityfocus.com/bid/88261
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- https://security.gentoo.org/glsa/201607-15
- http://www.securitytracker.com/id/1035705
- http://www.debian.org/security/2016/dsa-3629
- https://security.netapp.com/advisory/ntap-20171004-0002/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
- https://access.redhat.com/errata/RHSA-2016:1141
- http://rhn.redhat.com/errata/RHSA-2016-1552.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11
- https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf