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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2342 HPESBNW04181 rev.1 - HPE Aruba ClearPass Policy Manager, Multiple Vulnerabilities 9 July 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: HPE Aruba ClearPass Policy Manager Publisher: Hewlett-Packard Operating System: Network Appliance Virtualisation Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Increased Privileges -- Existing Account Access Confidential Data -- Existing Account Unauthorised Access -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade Original Bulletin: http://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay/?docId=hpesbnw04181en_us - --------------------------BEGIN INCLUDED TEXT-------------------- SECURITY BULLETIN HPESBNW04181 rev.1 - HPE Aruba ClearPass Policy Manager, Multiple Vulnerabilities NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Potential Security Impact: Local: Escalation of Privilege; Remote: Arbitrary Command Execution, Authentication Bypass, Denial of Service (DoS), SQL Injection, Insecure Deserialization Source: Hewlett Packard Enterprise, HPE Product Security Response Team VULNERABILITY SUMMARY Title: ClearPass Policy Manager Multiple Vulnerabilities NOTE: Information originally published in ARUBA-PSA-2021-012 Non-HPE site Aruba Product Security Advisory Advisory ID: ARUBA-PSA-2021-012 CVE: CVE-2020-14386, CVE-2021-3156, CVE-2021-29150, CVE-2021-29151, CVE-2021-29152, CVE-2021-34609, CVE-2021-34610, CVE-2021-34611, CVE-2021-34612, CVE-2021-34613, CVE-2021-34614, CVE-2021-34615, CVE-2021-34616 Publication Date: 2021-Jul-02 Status: Confirmed Severity: High Revision: 2 Overview Aruba has released updates to ClearPass Policy Manager that address multiple security vulnerabilities. Affected Products These vulnerabilities affect ClearPass running the following patch versions unless specifically noted otherwise in the details section: ClearPass 6.9.x prior to 6.9.6 ClearPass 6.8.x prior to 6.8.9 ClearPass 6.7.x all versions ClearPass 6.6.x all versions Details Authenticated SQL Injection Vulnerability in ClearPass Web-based Management Interface (CVE-2021-34609) A vulnerability in the web-based management interface API of ClearPass could allow an authenticated remote attacker to conduct SQL injection attacks against the ClearPass instance. An attacker could exploit this vulnerability to obtain and modify sensitive information in the underlying database potentially leading to an escalation of privileges. Internal references: ATLCP-82 Severity: High CVSSv3 Overall Score: 8.8 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Discovery: This vulnerability was discovered and reported by Erik De Jong (bugcrowd.com/erikdejong) via Aruba's Bug Bounty Program Sudo Privilege Escalation Vulnerability aka "Baron Samedit" (CVE-2021-3156) A vulnerability in the command line parameter parsing code of Sudo could allow an attacker with access to Sudo to execute commands or binaries with root privileges. ClearPass does not allow access to local shell commands during normal operation and so the main impact of this vulnerability would be as part of a "chained attack" where an attacker has achieved a foothold with lower privileges via another vulnerability and then uses this to escalate privileges. Internal references: ATLCP-131 Severity: High CVSSv3 Overall Score: 7.8 CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Discovery: This vulnerability was discovered and published by the Qualys Research Team. Local Privilege Escalation Vulnerability in ClearPass Linux Kernel (CVE-2020-14386) A vulnerability in the linux kernel of ClearPass could allow an attacker to gain root privileges from unprivileged processes. ClearPass does not allow access to local shell commands during normal operation and so the main impact of this vulnerability would be as part of a "chained attack" where an attacker has achieved a foothold with lower privileges via another vulnerability and then uses this to escalate privileges. Internal references: ATLCP-126 Severity: High CVSSv3 Overall Score: 7.8 CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Discovery: This vulnerability was discovered and published by Or Cohen of Palo Alto Networks. Deserialization Vulnerability in ClearPass Web-based Management Interface (CVE-2021-29150) A vulnerability in a deserialization function used by the ClearPass web-based management interface could allow remote authenticated users to execute arbitrary commands on the underlying host. A successful exploit allows an attacker to execute commands as root on the underlying operating system leading to complete system compromise. Internal references: ATLCP-118 Severity: High CVSSv3 Overall Score: 7.2 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Discovery: This vulnerability was discovered and reported by Daniel Jensen (@dozernz) via Aruba's Bug Bounty Program Authenticated Remote Command Injection in ClearPass Web-Based Management Interface Leading to Full System Compromise (CVE-2021-34610, CVE-2021-34611) Vulnerabilities in the ClearPass web-based management interface allow remote authenticated users to run arbitrary commands on the underlying host. A successful exploit could allow an attacker to execute arbitrary commands as root on the underlying operating system leading to complete system compromise. Internal references: ATLCP-78, ATLCP-128 Severity: High CVSSv3 Overall Score: 7.2 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Discovery: These vulnerabilities were discovered and reported by Daniel Jensen (@dozernz) and Erik De Jong (bugcrowd.com/erikdejong) via Aruba's Bug Bounty Program. Authentication Bypass in ClearPass Web-based Management Interface (CVE-2021-29151) A vulnerability exists which allows an unauthenticated attacker to access some unintended functions on the ClearPass web-based management interface. Successful exploitation allows an attacker to gain access to some data that should require authorization. This does not expose the system to compromise or leak sensitive information from the ClearPass instance. Internal references: ATLCP-133 Severity: Medium CVSSv3 Overall Score: 5.3 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Discovery: This vulnerability was discovered and reported by the Bell Canada security team. Authenticated Denial of Service Vulnerability in ClearPass Web-based Management Interface (CVE-2021-29152) A vulnerability in the web-based management interface of ClearPass could allow an authenticated remote attacker to conduct a denial of service attack against the system. A successful exploit could allow an attacker to deny access to the underlying database and prevent normal system operation. Internal references: ATLCP-110 Severity: Medium CVSSv3 Overall Score: 4.9 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Discovery: This vulnerability was discovered and reported by Erik De Jong (bugcrowd.com/erikdejong). Authenticated Remote Command Injection in ClearPass CLI (CVE-2021-34612) A vulnerability in the ClearPass CLI could allow remote authenticated users to run arbitrary commands on the underlying host. A successful exploit could allow an attacker to execute arbitrary commands as a low privileged user on the underlying operating system leading to partial system compromise. Internal references: ATLCP-100 Severity: Medium CVSSv3 Overall Score: 4.7 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L Discovery: This vulnerability was discovered and reported by damif512 (bugcrowd.com/damif512) via Aruba's Bug Bounty Program Authenticated Remote Command Injection in ClearPass Web-Based Management Interface Leading to Partial System Compromise (CVE-2021-34613, CVE-2021-34614, CVE-2021-34615, CVE-2021-34616) Vulnerabilities in the ClearPass web-based management interface allows remote authenticated users to run arbitrary commands on the underlying host. A successful exploit could allow an attacker to execute arbitrary commands as a low privileged user on the underlying operating system leading to partial system compromise. Internal references: ATLCP-102, ATLCP-106, ATLCP-114 ATLCP-115 Severity: Medium CVSSv3 Overall Score: 4.7 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L Discovery: These vulnerabilities were discovered and reported by Daniel Jensen (@dozernz) via Aruba's Bug Bounty Program. Workaround To minimize the likelihood of an attacker exploiting some of these vulnerabilities, Aruba recommends that the CLI and web-based management interfaces for ClearPass be restricted to a dedicated layer 2 segment/VLAN and/or controlled by firewall policies at layer 3 and above. ClearPass Security Hardening For general information on hardening ClearPass instances against security threats please see the ClearPass Hardening Guide available at https://support.hpe.com/hpesc/public/docDisplay?docId=a00091066en_us Exploitation and Public Discussion Aruba is not aware of any public discussion or exploit code that target these specific vulnerabilities. References: CVE-2021-34609 - Remote SQL injection CVE-2021-3156 - Local escalation of privilege CVE-2020-14386 - Local escalation of privilege CVE-2021-29150 - Remote insecure deserialization CVE-2021-34610 - Remote arbitrary command execution CVE-2021-34611 - Remote arbitrary command execution CVE-2021-29151 - Remote authentication bypass CVE-2021-29152 - Remote denial of service (DOS) CVE-2021-34612 - Remote arbitrary command execution CVE-2021-34613 - Remote arbitrary command execution CVE-2021-34614 - Remote arbitrary command execution CVE-2021-34615 - Remote arbitrary command execution CVE-2021-34616 - Remote arbitrary command execution SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. Aruba ClearPass Policy Manager - Prior to 6.10.0, 6.9.6 and 6.8.9 BACKGROUND HPE calculates CVSS using CVSS Version 3.1. If the score is provided from NIST, we will display Version 2.0, 3.0, or 3.1 as provided from NVD. Reference V3 Vector, V3 Base Score, V2 Vector, V2 Base Score CVE-2020-14386 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) 7.8 (AV:L/AC:L/Au:N/C:C/I:C/A:C) 7.2 CVE-2021-29150 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H 7.2 (AV:N/AC:L/Au:M/C:C/I:C/A:C) 8.3 CVE-2021-29151 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N 5.3 (AV:N/AC:L/Au:N/C:P/I:N/A:N) 5.0 CVE-2021-29152 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H 4.9 (AV:N/AC:L/Au:M/C:N/I:N/A:C) 6.1 CVE-2021-3156 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) 7.8 (AV:L/AC:L/Au:N/C:C/I:C/A:C) 7.2 CVE-2021-34609 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 8.8 (AV:N/AC:L/Au:S/C:C/I:C/A:C) 9.0 CVE-2021-34610 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H 7.2 (AV:N/AC:L/Au:M/C:C/I:C/A:C) 8.3 CVE-2021-34611 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H 7.2 (AV:N/AC:L/Au:M/C:C/I:C/A:C) 8.3 CVE-2021-34612 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L 4.7 (AV:N/AC:L/Au:M/C:P/I:P/A:P) 5.8 CVE-2021-34613 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L 4.7 (AV:N/AC:L/Au:M/C:P/I:P/A:P) 5.8 CVE-2021-34614 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L 4.7 (AV:N/AC:L/Au:M/C:P/I:P/A:P) 5.8 CVE-2021-34615 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L 4.7 (AV:N/AC:L/Au:M/C:P/I:P/A:P) 5.8 CVE-2021-34616 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L 4.7 (AV:N/AC:L/Au:M/C:P/I:P/A:P) 5.8 Information on CVSS is documented in HPE Customer Notice: HPSN-2008-002 CVE-2020-14386 was discovered and published by Or Cohen of Palo Alto Networks CVE-2021-3156 was discovered and published by the Qualys Research Team CVE-2021-29150, CVE-2021-34610, CVE-2021-34613, CVE-2021-34614, CVE-2021-34614 and CVE-2021-34615 were discovered and reported by Daniel Jensen (@dozernz) via Aruba's Bug Bounty Program CVE-2021-29151 was discovered and reported to Aruba by the Bell Canada security team CVE-2021-29152, CVE-2021-34609 and CVE-2021-34611 were discovered and reported by Erik De Jong (bugcrowd.com/erikdejong) via Aruba's Bug Bounty Program CVE-2021-34612 was discovered and reported by damif512 (bugcrowd.com/damif512) via Aruba's Bug Bounty Program RESOLUTION The vulnerabilities contained in this bulletin can be addressed by patching or upgrading to one of the ClearPass versions listed below ClearPass 6.10.x: 6.10 and above ClearPass 6.9.x: 6.9.6 and above ClearPass 6.8.x: 6.8.9 and above Please visit the Aruba Support Portal Non-HPE site to obtain updates for your products. HISTORY Version:1 (rev.1) - 6 July 2021 Initial release - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. 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