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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0637 cURL and libcurl vulnerability CVE-2017-2628 22 February 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: BIG-IP Enterprise Manager BIG-IQ F5 iWorkflow Traffix SDC Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-2628 CVE-2015-3148 Reference: ESB-2018.2229 ESB-2017.0831 Original Bulletin: https://support.f5.com/csp/article/K35453761 - --------------------------BEGIN INCLUDED TEXT-------------------- K35453761: cURL and libcurl vulnerability CVE-2017-2628 Original Publication Date: 29 Mar, 2018 Latest Publication Date: 19 Feb, 2021 Security Advisory Description cURL, as shipped in Red Hat Enterprise Linux 6 before version 7.19.7-53, did not correctly backport the fix for CVE-2015-3148 because it did not reflect the fact that the HAVE_GSSAPI define was meanwhile substituted by USE_HTTP_NEGOTIATE. This issue was introduced in RHEL 6.7 and affects RHEL 6 cURL only. (CVE-2017-2628) Impact An application using libcurl with HTTP Negotiate authentication can incorrectly re-use credentials for subsequent requests to the same server. Security Advisory Status F5 Product Development has assigned ID 681535 (BIG-IP), ID 682158 (BIG-IQ), ID 682153 (Enterprise Manager), ID 687002 (iWorkflow), and INSTALLER-3051 (Traffix) to this vulnerability. Additionally, BIG-IP iHealth may list Heuristic H35453761 on the Diagnostics > Identified > Medium page. To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases or hotfixes that address the vulnerability, refer to the following table. +-------------------+------+----------+----------+----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |13.x |None |Not | | | | | | | |applicable| | | | |BIG-IP (LTM, AAM, +------+----------+----------+ | | | |AFM, Analytics, |12.x |12.1.0 - |12.1.5.3 | | | | |APM, ASM, DNS, Edge| |12.1.5 | | | |cURL and | |Gateway, GTM, Link +------+----------+----------+Medium |4.8 |libcurl^2 | |Controller, PEM, | |11.6.1 - | | | | | |WebAccelerator, | |11.6.3 | | | | | |WebSafe) |11.x |11.5.1 - |None | | | | | | |11.5.8 | | | | | | | |11.2.1 | | | | | +-------------------+------+----------+----------+----------+------+----------+ |ARX |6.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |3.1.1 |None |Medium |4.8 |cURL and | | | | | | | |libcurl | +-------------------+------+----------+----------+----------+------+----------+ | |5.x |5.0.0 - |None | | | | |BIG-IQ Centralized | |5.4.0 | |Medium |4.8 |cURL and | |Management +------+----------+----------+ | |libcurl | | |4.x |4.6.0 |None | | | | +-------------------+------+----------+----------+----------+------+----------+ |BIG-IQ Cloud and |1.x |1.0.0 |None |Medium |4.8 |cURL and | |Orchestration | | | | | |libcurl | +-------------------+------+----------+----------+----------+------+----------+ |F5 iWorkflow |2.x |2.0.1 - |None |Medium |4.8 |cURL and | | | |2.3.0 | | | |libcurl | +-------------------+------+----------+----------+----------+------+----------+ |LineRate |2.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ | |5.x |5.0.0 - |None | | | | | | |5.1.0 | | | |cURL and | |Traffix SDC +------+----------+----------+Low |2.2 |libcurl | | |4.x |4.0.5 - |None | | | | | | |4.4.0 | | | | | +-------------------+------+----------+----------+----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. ^2Exposure to the vulnerability is possible only using a non-standard configuration; the cURL libraries and use of NTLM are not exposed in standard BIG-IP monitors. Custom EAV monitors using cURL and NTLM may be prone to this vulnerability. Security Advisory Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Fixes introduced in column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists. To determine the necessary upgrade path for your BIG-IQ system, you should understand the BIG-IQ product offering name changes. For more information, refer to K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems . Mitigation None Supplemental Information o K16707: cURL and libcurl vulnerability CVE-2015-3148 o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 13.x) o K15106: Managing BIG-IQ product hotfixes o K15113: BIG-IQ hotfix matrix o K48955220: Installing an OPSWAT Endpoint Security update on BIG-IP APM systems (11.4.x and later) o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - --------------------------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). 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