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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4396 Cisco Unity Express Command Injection Vulnerability 21 November 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Unity Express Publisher: Cisco Systems Operating System: Cisco Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-15986 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-unity-exp-comm-inject - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Unity Express Command Injection Vulnerability Priority: Medium Advisory ID: cisco-sa-20191120-unity-exp-comm-inject First Published: 2019 November 20 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvq54120 CVE-2019-15986 CWE-78 CVSS Score: 6.7 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X Summary o A vulnerability in the CLI of Cisco Unity Express could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. To exploit this vulnerability, an attacker would need valid administrator credentials. The vulnerability is due to improper input validation for certain CLI commands that are executed on a vulnerable system. An attacker could exploit this vulnerability by logging in to the system and sending crafted CLI commands. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root . Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/ cisco-sa-20191120-unity-exp-comm-inject Affected Products o Vulnerable Products At the time of publication, this vulnerability affected Cisco Unity Express releases earlier than Release 10.1. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability. Cisco has confirmed that this vulnerability does not affect Cisco Unity or Cisco Unity Connection. Workarounds o There are no workarounds that address this vulnerability. Fixed Software o When considering software upgrades , customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page , to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. Fixed Releases At the time of publication, Cisco Unity Express releases 10.1 and later contained the fix for this vulnerability. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. Exploitation and Public Announcements o The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory. Source o This vulnerability was found by Sreekanth Narayanan of Cisco during internal security testing. Cisco Security Vulnerability Policy o To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy . This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco. URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/ cisco-sa-20191120-unity-exp-comm-inject Revision History o +---------+-------------------------+---------+--------+------------------+ | Version | Description | Section | Status | Date | +---------+-------------------------+---------+--------+------------------+ | 1.0 | Initial public release. | - | Final | 2019-November-20 | +---------+-------------------------+---------+--------+------------------+ - --------------------------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. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXdYF32aOgq3Tt24GAQifDxAAtrAArcy4J475atrZLgrmuhuWxNH7ZOUi rosBBc0MXC1tg3962Bm/S2x4R6J6e6rD3EnNfbMM+AS8RcVKxIm/ipjCrkSvTBle csHNVm51P2nPvWAmxoJ3pv9eokSdTyCLFxXqNXCBE+D/VvJkF4yXOP0lL4U83VGd wuMzPOfGDm5ESrbDSO0eK2qTmhzNGn1XfxyhCZ+B52XalX/t+mOj3lBuL40J/gT3 poQN+au9yztCbg0xTJhgtWL9/n/qoM8E0jx5RWT4l7mu0gpdxQZJpur2HwUQr6Jh JP2Q0eQy1VG9F5iNkqJAoo0HYf3TB8K8YXvSzXrIZIVOJyf+YID/T2/AQLlgxluB FyMuNp4EF6KDtQ5gqDycZFaJMHxZVAJAgoVg8etbIq2mxiwKqpUKBE7PLNzDxeqO Mg+V16rSzne9cNg/dZ2ukVRqPkdtzbTHc3G6xNq+iBGR+XN1k9uK0nfMYpxE6B1O AbDoLVoJ5VIvhwUg8B7tyUZ0FXiPo0XxtZTnAJ/5ZBXqBpFW7A3BumwC/sHHrKen OIorUdma2YghwTS7iiVJgSlF5RsrakKHPExerNzJf08sFPpnCITLvRcNStPmi43a HHpmlBhoSn6F5HraS7ittkdIbDn1zetxJNgeUcWcrlM9hnvRNZtP4+fxUi7zuFfX SfmSgSlFjGQ= =Ntsm -----END PGP SIGNATURE-----