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BMC Server Automation rscd Service Authentication Bypass RCE

critical Nessus Plugin ID 93686

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Synopsis

The BMC Server Automation RSCD agent running on the remote host is affected by a remote command execution vulnerability.

Description

According to its self-reported version number, the BMC Server Automation (BSA) RSCD agent running on the remote host is affected by a remote command execution vulnerability due to a logic flaw in the authentication process of the rscd network daemon. An unauthenticated, remote attacker can exploit this issue to execute certain privileged commands without providing valid client certificates or credentials.
Specifically, one such command is REMOTE_COPY_DIRECTORY, which can be used to retrieve all files on the system with root privileges.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to BSA version 8.8 or later. Alternatively, apply version 8.7 Patch 3.

See Also

https://www.securityfocus.com/archive/1/539351

Plugin Details

Severity: Critical

ID: 93686

File Name: bmc_rscd_CVE-2016-4322.nasl

Version: 1.8

Type: remote

Family: Misc.

Published: 9/23/2016

Updated: 11/14/2019

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2016-4322

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:bmc:bladelogic_server_automation_rscd_agent

Exploit Ease: No known exploits are available

Patch Publication Date: 6/5/2016

Vulnerability Publication Date: 9/5/2016

Reference Information

CVE: CVE-2016-4322

BID: 92736

IAVB: 2016-B-0138