Grandstream UCM6200 up to 1.0.20 CTI Server sql injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Grandstream UCM6200 up to 1.0.20. This impacts an unknown function of the component CTI Server. The manipulation leads to sql injection. This vulnerability is uniquely identified as CVE-2020-5726. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Grandstream UCM6200 up to 1.0.20 and classified as critical. This issue affects an unknown functionality of the component CTI Server. The manipulation with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality. The summary by CVE is:

The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the CTI server on port 8888. A remote unauthenticated attacker can invoke the challenge action with a crafted username and discover user passwords.

The weakness was disclosed 03/30/2020 (Website). It is possible to read the advisory at tenable.com. The identification of this vulnerability is CVE-2020-5726 since 01/06/2020. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 1.0.20.22 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (48270). The entries VDB-152444, VDB-152445 and VDB-152446 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Grandstream

Name

• UCM6200

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5
• 1.0.6
• 1.0.7
• 1.0.8
• 1.0.9
• 1.0.10
• 1.0.11
• 1.0.12
• 1.0.13
• 1.0.14
• 1.0.15
• 1.0.16
• 1.0.17
• 1.0.18
• 1.0.19
• 1.0.20

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

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Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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