Code injection

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to CPU exhaustion due to an infinite loop in the TR-069 service. Unauthenticated remote attackers can trigger this case by sending a one character TCP message to the TR-069 service...

CVE-2020-5763

Grandstream HT800 series firmware version 1.0.17.5 and below contain a backdoor in the SSH service. An authenticated remote attacker can obtain a root shell by correctly answering a challenge prompt...

CVE-2020-5763

The CVE-2020-5763 entry describes a backdoor in the SSH service of Grandstream HT800 series firmware (≤ 1.0.17.5). An authenticated remote attacker can obtain a root shell by correctly answering a challenge prompt, enabling complete device compromise. The connected documents confirm the affected ...

CVE-2020-5762

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to a denial of service attack against the TR-069 service. An unauthenticated remote attacker can stop the service due to a NULL pointer dereference in the TR-069 service. This condition is triggered due to mishandling of t...

CVE-2020-5762

CVE-2020-5762 affects Grandstream HT800 series firmware

CVE-2020-5761

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to CPU exhaustion due to an infinite loop in the TR-069 service. Unauthenticated remote attackers can trigger this case by sending a one character TCP message to the TR-069 service...

CVE-2020-5761

The CVE-2020-5761 issue affects Grandstream HT800 series firmware 1.0.17.5 and earlier. A bug in the TR-069 service can enter an infinite loop, causing CPU exhaustion when an unauthenticated remote attacker sends a single-character TCP message to TR-069. Public descriptions confirm the impact is ...

CVE-2020-5760

The CVE-2020-5760 entry applies to Grandstream HT800 series firmware

CVE-2020-5760

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to an OS command injection vulnerability. Unauthenticated remote attackers can execute arbitrary commands as root by crafting a special configuration file and sending a crafted SIP message...

Grandstream UCM6200 Series OS Command Injection Vulnerability

The Grandstream UCM6200 is an enterprise-class switch for IP telephony communications from Grandstream. An OS command injection vulnerability exists in the Grandstream UCM6200 series versions 1.0.20.23 and earlier. The vulnerability can be exploited to execute commands as root by issuing speciall...

Grandstream UCM6200 Series OS Command Injection Vulnerability (CNVD-2020-44351)

The Grandstream UCM6200 is an enterprise-class switch for IP telephony communications from Grandstream. An OS command injection vulnerability exists in the Grandstream UCM6200 series versions 1.0.20.23 and earlier. A remote authenticated attacker can exploit this vulnerability by sending a...

Grandstream GWN7000 Arbitrary OS Command Execution Vulnerability

The Grandstream GWN7000 is an enterprise-class multi-WAN Gigabit VPN router. An arbitrary OS command execution vulnerability exists in the Grandstream GWN7000 version 1.0.9.4 and earlier. The vulnerability stems from the fact that the product allows an authenticated remote user to modify the...

Grandstream UCM6200 Series OS Command Injection Vulnerability (CNVD-2020-44352)

The Grandstream UCM6200 is an enterprise-class switch for IP telephony communications from Grandstream. An OS command injection vulnerability exists in the Grandstream UCM6200 series versions 1.0.20.23 and earlier. This vulnerability can be exploited by an attacker to execute commands as root by...

CVE-2020-5757

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via HTTP. An authenticated remote attacker can bypass command injection mitigations and execute commands as the root user by sending a crafted HTTP POST to the UCM's "New" HTTPS API...

CVE-2020-5758

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via HTTP. An authenticated remote attacker can execute commands as the root user by sending a crafted HTTP GET to the UCM's "Old" HTTPS API...

CVE-2020-5757

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via HTTP. An authenticated remote attacker can bypass command injection mitigations and execute commands as the root user by sending a crafted HTTP POST to the UCM's "New" HTTPS API...

CVE-2020-5756

Grandstream GWN7000 firmware version 1.0.9.4 and below allows authenticated remote users to modify the system's crontab via undocumented API. An attacker can use this functionality to execute arbitrary OS commands on the router...

CVE-2020-5759

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via SSH. An authenticated remote attacker can execute commands as the root user by issuing a specially crafted "unset" command...

CVE-2020-5759

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via SSH. An authenticated remote attacker can execute commands as the root user by issuing a specially crafted "unset" command...

Design/Logic Flaw

Grandstream GWN7000 firmware version 1.0.9.4 and below allows authenticated remote users to modify the system's crontab via undocumented API. An attacker can use this functionality to execute arbitrary OS commands on the router...