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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0624 IBM Security Bulletin: Multiple Samba vulnerabilities affect IBM Spectrum Protect Plus (CVE-2018-1139, CVE-2018-1140, CVE-2018-10858, CVE-2018-10918, CVE-2018-10919) 28 February 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Spectrum Protect Plus Publisher: IBM Operating System: Linux variants Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-10919 CVE-2018-10918 CVE-2018-10858 CVE-2018-1140 CVE-2018-1139 Reference: ASB-2018.0137 ESB-2018.2617 ESB-2018.2354 ESB-2018.2349 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm10796402 - --------------------------BEGIN INCLUDED TEXT-------------------- Multiple Samba vulnerabilities affect IBM Spectrum Protect Plus (CVE-2018-1139, CVE-2018-1140, CVE-2018-10858, CVE-2018-10918, CVE-2018-10919) Product: IBM Spectrum Protect Plus Software version: 10.1.0, 10.1.1, 10.1.2 Operating system(s): Linux Reference #: 0796402 Security Bulletin Summary There are multiple security vulnerabilities in Samba that affect IBM Spectrum Protect Plus. These vulnerabilities may result in potential information disclosure, denial of service, or execution of arbitrary code on the system. Vulnerability Details CVEID: CVE-2018-1139 DESCRIPTION: Samba could allow a remote attacker to obtain information, caused by the use of weak NTLMv1 authentication over an SMB1 transport. An attacker could exploit this vulnerability using man-in-the-middle techniques to read details passed between the samba server and client. CVSS Base Score: 5.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 148707 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N) CVEID: CVE-2018-1140 DESCRIPTION: Samba is vulnerable to a denial of service, caused by missing NULL pointer checks on some of the input parameters to the implementation of LDP database. If Samba is in an Active Directory Domain Controller configuration, a remote attacker could exploit this vulnerability to cause the LDAP server and DNS server to crash. CVSS Base Score: 6.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 148706 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2018-10858 DESCRIPTION: Samba is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by libsmbclient. By sending an overly long filename, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash. CVSS Base Score: 7.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 148710 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L) CVEID: CVE-2018-10918 DESCRIPTION: Samba is vulnerable to a denial of service, caused by a NULL pointer dereference when checking database outputs from the LDB database layer. If Samba is in an Active Directory Domain Controller configuration, a remote attacker could exploit this vulnerability to cause the "samba" process to crash. CVSS Base Score: 5.2 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 148709 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H) CVEID: CVE-2018-10919 DESCRIPTION: Samba could allow a remote attacker to obtain information, caused by missing access control checks in the Active Directory LDAP server. An attacker could exploit this vulnerability using authenticated LDAP search expressions to obtain confidential attribute values. CVSS Base Score: 4.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 148708 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) Affected Products and Versions IBM Spectrum Protect Plus versions 10.1.0 through 10.1.2. Remediation/Fixes +---------------+-------------+---------+-------------------------------------------------------------------------------+ |IBM Spectrum | |Platform | | |Protect Plus |First Fixing | | | |Release |VRM Level | |Link to Fix / Fix Availability Target | +---------------+-------------+---------+-------------------------------------------------------------------------------+ |10.1 |10.1.3 |Linux |https://www.ibm.com/support/docview.wssuid=ibm10743897 | +---------------+-------------+---------+-------------------------------------------------------------------------------+ Workarounds and Mitigations None. Reference Complete CVSS v3 Guide On-line Calculator v3 Related Information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Change History 26 February 2019 - original version published *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. Disclaimer According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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). 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