CVE-2019-1951 Cisco SD-WAN Solution Packet Filtering Bypass Vulnerability
Unauthenticated remote attackers can bypass L3 and L4 traffic filters to inject arbitrary packets into the network.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1951?
CVE-2019-1951 is a medium-severity vulnerability in Cisco SD-WAN Solution, published on 8 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the packet filtering features of Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a target device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet in the network.
Weakness: CWE-20
Which versions are affected by CVE-2019-1951?
It affects 1 product.
Products include Cisco Sd-Wan Firmware.
How do I fix CVE-2019-1951?
No fix has been published for CVE-2019-1951 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1951 being exploited?
There is no known exploitation of CVE-2019-1951 in the wild and no public exploit code.
Other vulnerabilities in Cisco SD-WAN Solution
- CVE-2020-3381 Cisco SD-WAN vManage Software Directory Traversal Vulnerability
- CVE-2020-3115 Cisco SD-WAN Solution Local Privilege Escalation Vulnerability
- CVE-2019-1626 Cisco SD-WAN Solution Privilege Escalation Vulnerability
- CVE-2020-3351 Cisco SD-WAN Solution Software Denial of Service Vulnerability
- CVE-2020-3369 Cisco SD-WAN vEdge Routers Denial of Service Vulnerability
Sources
Also known as GHSA-xpmg-vx7g-292w.