CVE-2019-15800 Command injection in n/a
Attackers can execute arbitrary commands on Zyxel GS1900 switches via input validation flaws in firmware functions, potentially leading to full device compromise.
- 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-2019-15800?
CVE-2019-15800 is a critical command injection vulnerability in n/a, published on 14 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Due to lack of input validation in the cmd_sys_traceroute_exec(), cmd_sys_arp_clear(), and cmd_sys_ping_exec() functions in the libclicmd.so library contained in the firmware, an attacker could leverage these functions to call system() and execute arbitrary commands on the switches. (Note that these functions are currently not called in this version of the firmware, however an attacker could use other vulnerabilities to finally use these vulnerabilities to gain code execution.)
Weakness: CWE-78
Which versions are affected by CVE-2019-15800?
It affects 9 products.
Products include Zyxel Gs1900-10hp Firmware, Zyxel Gs1900-16 Firmware, Zyxel Gs1900-24 Firmware, Zyxel Gs1900-24e Firmware, Zyxel Gs1900-24hp Firmware, Zyxel Gs1900-48 Firmware and 3 more.
How do I fix CVE-2019-15800?
No fix has been published for CVE-2019-15800 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2019-15800 being exploited?
There is no known exploitation of CVE-2019-15800 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-wgw9-xjmw-x98v.