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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1182 WebSphere Application Server is vulnerable to a Server-side Request Forgery vulnerability (CVE-2021-20480) 8 April 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM WebSphere Application Server Publisher: IBM Operating System: AIX HP-UX IBM i Linux variants Windows Impact/Access: Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-20480 Original Bulletin: https://www.ibm.com/support/pages/node/6441063 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: WebSphere Application Server is vulnerable to a Server-side Request Forgery vulnerability (CVE-2021-20480) Summary WebSphere Application Server is vulnerable to a server-side request forgery vulnerability. This has been addressed. More support for: WebSphere Application Server Software version: 7.0, 8.0, 8.5 Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS Document number: 6441063 Modified date: 07 April 2021 UID ibm16441063 Vulnerability Details CVEID: CVE-2021-20480 DESCRIPTION: IBM WebSphere Application Server is vulnerable to server-side request forgery (SSRF). By sending a specially crafted request, a remote authenticated attacker could exploit this vulnerability to obtain sensitive data. CVSS Base score: 4.3 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/ 197502 for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N) Affected Products and Versions +----------------------------+----------+ |Affected Product(s) |Version(s)| +----------------------------+----------+ |WebSphere Application Server|7.0 | +----------------------------+----------+ |WebSphere Application Server|8.0 | +----------------------------+----------+ |WebSphere Application Server|8.5 | +----------------------------+----------+ Remediation/Fixes For WebSphere Application Server traditional and WebSphere Application Server Hypervisor Edition: For V8.5.0.0 through 8.5.5.19: . Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH33994 - --OR-- . Apply Fix Pack 8.5.5.20 or later (targeted availability 3Q2021). For V8.0.0.0 through 8.0.0.15: . Upgrade to 8.0.0.15 and then apply Interim Fix PH33994 For V7.0.0.0 through 7.0.0.45: . Upgrade to 7.0.0.45 and then apply Interim Fix PH33994 Additional interim fixes may be available and linked off the interim fix download page. WebSphere Application Server V7.0 and V8.0 are no longer in full support; IBM recommends upgrading to a fixed, supported version/release/platform of the product. Workarounds and Mitigations None Acknowledgement The vulnerability was reported to IBM by Kylinking Change History 07 Apr 2021: Initial Publication *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. Document Location Worldwide - --------------------------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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYG5bxuNLKJtyKPYoAQg20Q//bDx2aS95XSPM8BcDrdpUaNTg4cEHaW2q 1npziDS0fr73NmebofhYYOlLJX387f6CF+SbuMmxdyJhgXKISQz2NeabCE8oAiLc a1o8DD6TvacaEOO8xiAg29qdM39m1dRdyq2yDWDqwCcigTRCkCmuovSOZ2/gzjds ctTwrqWxU9gykzBQ1xvl6CGytkEaHn+uJsMA54ZsS8HpKS5nL8OttnSxW+MxHyPc SxJsEyucehsBPIrMfeWaMGRpgYj+CbmZBt8mU06C+i76RhxIpi7ciKunaopOVJ+9 zKwpc4QptGyfUnC6SNiNTmVsdAhsBFaOI/+od1Is1fHo1W6BemCI2SroMGzMi+fw e110t9IHmldVWf1+qzRgP4HJO2nL/Nnrr5L0YyRuPrZhYz2lS00t/7fx/nzhraAr dhddO6YSTSo0daf6/hIfgVSsHQ+GkmUYol6dGx4/3dyG8ONBqjJb39Mpe4uCe7tN YivCAm/LdG4ZKuCVEEF23aGDHQptmQTHMr40doHMpmQ/QmW8fgTawPrdPmGp2Jkv slr19nEIfkx52LtZHr6UlS6/704BJV6m3dvdxrl3TQVBYYlfaItHugXWQDqqqxuL RLsFV0Fvg+N5VNRC9bG2RCh3QTbVFrruVC+eNfWawdJl79oUx3wSjuB1kNCMiGYx DW0IRACO56w= =N+32 -----END PGP SIGNATURE-----