CVE-2019-1761 Cisco IOS and IOS XE Software Hot Standby Router Protocol Information Leak Vulnerability
An unauthenticated adjacent attacker can receive sensitive information from Cisco IOS/IOS XE devices via HSRPv2 traffic due to insufficient memory initialization.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1761?
CVE-2019-1761 is a medium-severity vulnerability in Cisco Ios, published on 28 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the Hot Standby Router Protocol (HSRP) subsystem of Cisco IOS and IOS XE Software could allow an unauthenticated, adjacent attacker to receive potentially sensitive information from an affected device. The vulnerability is due to insufficient memory initialization. An attacker could exploit this vulnerability by receiving HSRPv2 traffic from an adjacent HSRP member. A successful exploit could allow the attacker to receive potentially sensitive information from the adjacent device.
Weakness: CWE-665
Which versions are affected by CVE-2019-1761?
It affects 2 products.
Products include Cisco Ios, Cisco Ios Xe.
How do I fix CVE-2019-1761?
No fix has been published for CVE-2019-1761 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1761 being exploited?
There is no known exploitation of CVE-2019-1761 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
- CVE-2017-12240 Cisco IOS and IOS XE Software DHCP Remote Code Execution
- CVE-2017-3881 Cisco IOS and IOS XE Remote Code Execution
- CVE-2018-0167 Cisco IOS, XR, and XE Software Buffer Overflow
- CVE-2017-6736 Cisco IOS and IOS XE Software SNMP Remote Code Execution
- CVE-2017-6737 Cisco IOS and IOS XE Software SNMP Remote Code Execution
Sources
Also known as GHSA-ww5w-rpfr-5qgm.