A vulnerability classified as critical was found in BMC Patrol Agent up to 11.3.01. This vulnerability affects an unknown functionality of the component PatrolCli. The manipulation with an unknown input leads to a access control vulnerability (Lateral). The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

** DISPUTED ** An issue was discovered in BMC PATROL Agent through 11.3.01. It was found that the PatrolCli application can allow for lateral movement and escalation of privilege inside a Windows Active Directory environment. It was found that by default the PatrolCli / PATROL Agent application only verifies if the password provided for the given username is correct; it does not verify the permissions of the user on the network. This means if you have PATROL Agent installed on a high value target (domain controller), you can use a low privileged domain user to authenticate with PatrolCli and then connect to the domain controller and run commands as SYSTEM. This means any user on a domain can escalate to domain admin through PATROL Agent. NOTE: the vendor disputes this because they believe it is adequate to prevent this escalation by means of a custom, non-default configuration.

The weakness was shared 01/17/2019 (Website). The advisory is shared for download at securifera.com. This vulnerability was named CVE-2018-20735 since 01/17/2019. The attack can be initiated remotely. The successful exploitation needs a single authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed by b0yd and been published before and not just after the advisory. It is possible to download the exploit at securifera.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 31 days. During that time the estimated underground price was around $0-$5k. The real existence of this vulnerability is still doubted at the moment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

Vendor

• BMC

Name

• Patrol Agent

Version

• 11.3.01

License

• commercial

CPE 2.3info

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CPE 2.2info

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