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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3108 Threat Intelligence Exchange Server update fixes five third-party vulnerabilities 10 September 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Threat Intelligence Exchange Server Publisher: Mcafee Operating System: Windows Impact/Access: Denial of Service -- Remote/Unauthenticated Access Privileged Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-2830 CVE-2020-2781 CVE-2020-0549 CVE-2020-0543 CVE-2019-3738 Reference: ESB-2020.3063 ESB-2020.2738 ESB-2020.2330 ESB-2020.2300 Original Bulletin: https://kc.mcafee.com/corporate/index?page=content&id=SB10318 - --------------------------BEGIN INCLUDED TEXT-------------------- McAfee Security Bulletin - Threat Intelligence Exchange Server update fixes five third-party vulnerabilities (CVE-2019-3738, CVE-2020-0543, CVE-2020-0549, CVE-2020-2781, and CVE-2020-2830) Security Bulletins ID : SB10318 Last Modified : 9/8/2020 Summary First Published: September 8, 2020 +----------------+---------+-------------+------------------+--------+--------+ | | | | | |CVSS | | |Impacted | |Impact of |Severity|v3.1 | |Product: |Versions:|CVE ID: |Vulnerabilities: |Ratings:|Base/ | | | | | | |Temporal| | | | | | |Scores: | +----------------+---------+-------------+------------------+--------+--------+ |Threat | | |Improper | | | |Intelligence | | |Verification of | |6.5 / | |Exchange (TIE) |3.0, 2.x |CVE-2019-3738|Cryptographic |Medium |5.4 | |Server | | |Signature | | | | | | |(CWE-347) | | | +----------------+---------+-------------+------------------+--------+--------+ | | | |Data Leakage via | | | |TIE Server |3.0, 2.x |CVE-2020-0543|Privilege |Medium |5.5 / | | | | |Escalation | |4.6 | | | | |(CWE-269) | | | +----------------+---------+-------------+------------------+--------+--------+ | | | |Data Leakage via | | | |TIE Server |3.0, 2.x |CVE-2020-0549|Privilege |Medium |5.5 / | | | | |Escalation | |4.6 | | | | |(CWE-269) | | | +----------------+---------+-------------+------------------+--------+--------+ |TIE Server |3.0, 2.x |CVE-2020-2781|Denial of Service |Medium |5.3 / | | | | |(CWE-730) | |4.4 | +----------------+---------+-------------+------------------+--------+--------+ |TIE Server |3.0, 2.x |CVE-2020-2830|Denial of Service |Medium |5.3 / | | | | |(CWE-730) | |4.4 | +----------------+---------+-------------+------------------+--------+--------+ |Recommendations:|Install or update to TIE Server 3.0.1 | +----------------+------------------------------------------------------------+ |Security | | |Bulletin |None | |Replacement: | | +----------------+------------------------------------------------------------+ |Location of | | |updated |http://www.mcafee.com/us/downloads/downloads.aspx | |software: | | +----------------+------------------------------------------------------------+ To receive email notification when this Security Bulletin is updated, click Subscribe on the right side of the page. You must be logged on to subscribe. Article contents: o Vulnerability Description o Remediation o Frequently Asked Questions (FAQs) o Resources o Disclaimer Vulnerability Description 1. CVE-2019-3738 RSA BSAFE Crypto-J versions prior to 6.2.5 are vulnerable to a Missing Required Cryptographic Step vulnerability. A malicious remote attacker could potentially exploit this vulnerability to coerce two parties into computing the same predictable shared key. https://nvd.nist.gov/vuln/detail/CVE-2019-3738 https://cve.mitre.org/cgi-bin/cvename.cginame=CVE-2019-3738 2. CVE-2020-0543 Incomplete cleanup from specific special register read operations in some Intel Processors may allow an authenticated user to potentially enable information disclosure via local access. https://nvd.nist.gov/vuln/detail/CVE-2020-0543 https://cve.mitre.org/cgi-bin/cvename.cginame=CVE-2020-0543 3. CVE-2020-0549 Cleanup errors in some data cache evictions for some Intel Processors may allow an authenticated user to potentially enable information disclosure via local access. https://nvd.nist.gov/vuln/detail/CVE-2020-0549 https://cve.mitre.org/cgi-bin/cvename.cginame=CVE-2020-0549 4. CVE-2020-2781 Vulnerability in the Java SE , Java SE Embedded product of Oracle Java SE (component: JSSE). Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded. https://nvd.nist.gov/vuln/detail/CVE-2020-2781 https://cve.mitre.org/cgi-bin/cvename.cginame=CVE-2020-2781 5. CVE-2020-2830 Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Concurrency). Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded. https://nvd.nist.gov/vuln/detail/CVE-2020-2830 https://cve.mitre.org/cgi-bin/cvename.cginame=CVE-2020-2830 Remediation To remediate this issue, McAfee recommends upgrading to TIE Server 3.0.1. Go to the Product Downloads site and download the applicable product update file: +----------+-------+------+-------------------+-----------------+ |Product |Version|Type |File Name |Release Date | +----------+-------+------+-------------------+-----------------+ |TIE Server|3.0.1 |Update|TIEServer_3.0.1_119|September 8, 2020| +----------+-------+------+-------------------+-----------------+ Download and Installation Instructions See KB56057 for instructions on how to download McAfee products, documentation, updates, and hotfixes. Review the Release Notes and the Installation Guide, which you can download from the Documentation tab, for instructions on how to install these updates. Frequently Asked Questions (FAQs) How do I know if my McAfee product is vulnerable or not For Appliances: Use the following instructions for Appliance-based products: 1. Open the Administrator's User Interface (UI). 2. Click the About link. The product version displays. What is CVSS CVSS, or Common Vulnerability Scoring System, is the result of the National Infrastructure Advisory Council's effort to standardize a system of assessing the criticality of a vulnerability. This system offers an unbiased criticality score between 0 and 10 that customers can use to judge how critical a vulnerability is and plan accordingly. For more information, visit the CVSS website at: https://www.first.org/cvss/ . When calculating CVSS scores, McAfee has adopted a philosophy that fosters consistency and repeatability. Our guiding principle for CVSS scoring is to score the exploit under consideration by itself. We consider only the immediate and direct impact of the exploit under consideration. We do not factor into a score any potential follow-on exploits that might be made possible by the successful exploitation of the issue being scored. What are the CVSS scoring metrics 1. CVE-2019-3738: RSA BSAFE Crypto-J Missing Required Cryptographic Step +------------------------+----------------+ |Base Score |6.5 | +------------------------+----------------+ |Attack Vector (AV) |Network (N) | +------------------------+----------------+ |Attack Complexity (AC) |Low (L) | +------------------------+----------------+ |Privileges Required (PR)|None (N) | +------------------------+----------------+ |User Interaction (UI) |Required (R) | +------------------------+----------------+ |Scope (S) |Unchanged (U) | +------------------------+----------------+ |Confidentiality (C) |None (N) | +------------------------+----------------+ |Integrity (I) |None (N) | +------------------------+----------------+ |Availability (A) |High (H) | +------------------------+----------------+ |Temporal Score (Overall)|5.4 | +------------------------+----------------+ |Exploitability (E) |Unproven (U) | +------------------------+----------------+ |Remediation Level (RL) |Official Fix (O)| +------------------------+----------------+ |Report Confidence (RC) |Reasonable (R) | +------------------------+----------------+ NOTE: The below CVSS version 3.1 vector was used to generate this score. https://nvd.nist.gov/vuln-metrics/cvss/v3-calculatorvector=AV:N/AC:L/PR:N/ UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:R&version=3.1 2. CVE-2020-0543: Special Register Buffer Data Sampling +------------------------+----------------+ |Base Score |5.5 | +------------------------+----------------+ |Attack Vector (AV) |Local (L) | +------------------------+----------------+ |Attack Complexity (AC) |Low (L) | +------------------------+----------------+ |Privileges Required (PR)|Low (L) | +------------------------+----------------+ |User Interaction (UI) |None (N) | +------------------------+----------------+ |Scope (S) |Unchanged (U) | +------------------------+----------------+ |Confidentiality (C) |High (H) | +------------------------+----------------+ |Integrity (I) |None (N) | +------------------------+----------------+ |Availability (A) |None (N) | +------------------------+----------------+ |Temporal Score (Overall)|4.6 | +------------------------+----------------+ |Exploitability (E) |Unproven (U) | +------------------------+----------------+ |Remediation Level (RL) |Official Fix (O)| +------------------------+----------------+ |Report Confidence (RC) |Reasonable (R) | +------------------------+----------------+ NOTE: The below CVSS version 3.1 vector was used to generate this score. https://nvd.nist.gov/vuln-metrics/cvss/v3-calculatorvector=AV:L/AC:L/PR:L/ UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:R&version=3.1 3. CVE-2020-0549: Cache Eviction Sampling +------------------------+----------------+ |Base Score |5.5 | +------------------------+----------------+ |Attack Vector (AV) |Local (L) | +------------------------+----------------+ |Attack Complexity (AC) |Low (L) | +------------------------+----------------+ |Privileges Required (PR)|Low (L) | +------------------------+----------------+ |User Interaction (UI) |None (N) | +------------------------+----------------+ |Scope (S) |Unchanged (U) | +------------------------+----------------+ |Confidentiality (C) |High (H) | +------------------------+----------------+ |Integrity (I) |None (N) | +------------------------+----------------+ |Availability (A) |None (N) | +------------------------+----------------+ |Temporal Score (Overall)|4.6 | +------------------------+----------------+ |Exploitability (E) |Unproven (U) | +------------------------+----------------+ |Remediation Level (RL) |Official Fix (O)| +------------------------+----------------+ |Report Confidence (RC) |Reasonable (R) | +------------------------+----------------+ NOTE: The below CVSS version 3.1 vector was used to generate this score. https://nvd.nist.gov/vuln-metrics/cvss/v3-calculatorvector=AV:L/AC:L/PR:L/ UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:R&version=3.1 4. CVE-2020-2781: Re-use of single TLS session for new connections +------------------------+----------------+ |Base Score |5.3 | +------------------------+----------------+ |Attack Vector (AV) |Network (N) | +------------------------+----------------+ |Attack Complexity (AC) |Low (L) | +------------------------+----------------+ |Privileges Required (PR)|None (N) | +------------------------+----------------+ |User Interaction (UI) |None (N) | +------------------------+----------------+ |Scope (S) |Unchanged (U) | +------------------------+----------------+ |Confidentiality (C) |None (N) | +------------------------+----------------+ |Integrity (I) |None (N) | +------------------------+----------------+ |Availability (A) |Low (L) | +------------------------+----------------+ |Temporal Score (Overall)|4.4 | +------------------------+----------------+ |Exploitability (E) |Unproven (U) | +------------------------+----------------+ |Remediation Level (RL) |Official Fix (O)| +------------------------+----------------+ |Report Confidence (RC) |Reasonable (R) | +------------------------+----------------+ NOTE: The below CVSS version 3.1 vector was used to generate this score. https://nvd.nist.gov/vuln-metrics/cvss/v3-calculatorvector=AV:N/AC:L/PR:N/ UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:R&version=3.1 5. CVE-2020-2830 +------------------------+----------------+ |Base Score |5.3 | +------------------------+----------------+ |Attack Vector (AV) |Network (N) | +------------------------+----------------+ |Attack Complexity (AC) |Low (L) | +------------------------+----------------+ |Privileges Required (PR)|None (N) | +------------------------+----------------+ |User Interaction (UI) |None (N) | +------------------------+----------------+ |Scope (S) |Unchanged (U) | +------------------------+----------------+ |Confidentiality (C) |None (N) | +------------------------+----------------+ |Integrity (I) |None (N) | +------------------------+----------------+ |Availability (A) |Low (L) | +------------------------+----------------+ |Temporal Score (Overall)|4.4 | +------------------------+----------------+ |Exploitability (E) |Unproven (U) | +------------------------+----------------+ |Remediation Level (RL) |Official Fix (O)| +------------------------+----------------+ |Report Confidence (RC) |Reasonable (R) | +------------------------+----------------+ NOTE: The below CVSS version 3.1 vector was used to generate this score. https://nvd.nist.gov/vuln-metrics/cvss/v3-calculatorvector=AV:N/AC:L/PR:N/ UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:R&version=3.1 Where can I find a list of all Security Bulletins All Security Bulletins are published on our external PSIRT website at https:// www.mcafee.com/us/threat-center/product-security-bulletins.aspx . To see Security Bulletins for McAfee Enterprise products on this website click Enterprise Security Bulletins . Security Bulletins are retired (removed) once a product is both End of Sale and End of Support (End of Life). How do I report a product vulnerability to McAfee If you have information about a security issue or vulnerability with a McAfee product, visit the McAfee PSIRT website for instructions at https:// www.mcafee.com/us/threat-center/product-security-bulletins.aspx . To report an issue, click Report a Security Vulnerability . How does McAfee respond to this and any other reported security flaws Our key priority is the security of our customers. If a vulnerability is found within any McAfee software or services, we work closely with the relevant security software development team to ensure the rapid and effective development of a fix and communication plan. McAfee only publishes Security Bulletins if they include something actionable such as a workaround, mitigation, version update, or hotfix. Otherwise, we would simply be informing the hacker community that our products are a target, putting our customers at greater risk. For products that are updated automatically, a non-actionable Security Bulletin might be published to acknowledge the discoverer. View our PSIRT policy on the McAfee PSIRT website at https://www.mcafee.com/us/ threat-center/product-security-bulletins.aspx by clicking About PSIRT . Resources To contact Technical Support, log on to the ServicePortal and go to the Create a Service Request page at https://support.mcafee.com/ServicePortal/faces/ serviceRequests/createSR : o If you are a registered user, type your User ID and Password, and then click Log In . o If you are not a registered user, click Register and complete the required fields. Your password and logon instructions will be emailed to you. Disclaimer The information provided in this Security Bulletin is provided as is without warranty of any kind. McAfee disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall McAfee or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if McAfee or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the preceding limitation may not apply. Any future product release dates mentioned in this Security Bulletin are intended to outline our general product direction, and they should not be relied on in making a purchasing decision. The product release dates are for information purposes only, and may not be incorporated into any contract. The product release dates are not a commitment, promise, or legal obligation to deliver any material, code, or functionality. The development, release, and timing of any features or functionality described for our products remains at our sole discretion and may be changed or canceled at any time - --------------------------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. 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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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