Cisco Unified Communications Manager contains a vulnerability that could allow an unauthenticated remote attacker to conduct Structured Query Language injection attacks on a targeted device. Updates are available.
Cisco Unified Communication Manager (Unified CM) contains a vulnerability that could allow an unauthenticated, remote attacker to execute a blind Structured Query Language (SQL) injection.
The vulnerability is due to improper validation of user-supplied requests by the Cisco Unified CM. An attacker could exploit this vulnerability by injecting SQL commands. An exploit could allow the attacker to leverage metadata to recreate encrypted information within the database. This metadata could be used to reconstruct encrypted credentials.
Proof-of-concept code that demonstrates an exploit of this vulnerability is publicly available.
Cisco has confirmed the vulnerability in a security advisory and has released a temporary fix.
Cisco Unified CM versions 9.1(1a) and prior are affected.
To exploit this vulnerability, an attacker may require access to trusted, internal networks to send crafted requests to the affected software. This access requirement could limit the likelihood of a successful exploit.
Cisco Unified CM version 8.0 reached the End of Software Maintenance on October 23, 2012. Customers using Cisco Unified CM 8.0(x) versions should contact their Cisco support team for assistance in upgrading to a supported version of Cisco Unified CM.
Cisco Unified CM is the only product confirmed to be vulnerable. Additional voice products may be affected by one or more of the individual vulnerabilities that are described in the advisory. The following products are being investigated but have not yet been confirmed as vulnerable:
Cisco Emergency Responder
Cisco Unified Contact Center Express
Cisco Unified Customer Voice Portal
Cisco Unified Presence Server/Cisco IM and Presence Service
Cisco Unity Connection
This vulnerability can be exploited over the default management ports, TCP port 8080 or 8443.
An unauthenticated, remote attacker with access to the Cisco Unified CM static symmetric encryption key could exploit the vulnerability to obtain and decrypt a local user account. This could allow the attacker to launch a subsequent, authenticated blind SQL injection attack on the database.
The vulnerability is due to improper validation of user-supplied input by the affected software when handling SQL queries.
An unauthenticated, remote attacker could exploit the vulnerability by submitting crafted SQL queries to a targeted device. When the affected software processes the malicious SQL queries, the attacker could access metadata that could be used to reconstruct encrypted credentials within the Cisco Unified CM database. This could allow an attacker with access to the Cisco Unified CM static symmetric encryption key to obtain and decrypt a local user account.
Administrators are advised to apply the appropriate updates.
Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
Cisco customers with active contracts can obtain updates through the Software Center. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at firstname.lastname@example.org.
A Cisco Options Package (COP) file, cmterm-CSCuh01051-2.cop.sgn, has been released to the software downloads page in the Utilities section for the affected software. The COP file for 9.1(x) versions would be located by navigating the following path on the software downloads page:
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