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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.2347.2 Junos OS: SRX Series: processing a malformed HTTP message when ICAP redirect service is enabled may can lead to flowd process crash or remote code execution (CVE-2020-1654) 10 July 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Junos OS Publisher: Juniper Networks Operating System: Juniper Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-1654 Original Bulletin: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11031 Revision History: July 10 2020: RCE Vulnerability in Junos OS July 9 2020: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- 2020-07 Security Bulletin: Junos OS: SRX Series: processing a malformed HTTP message when ICAP redirect service is enabled may can lead to flowd process crash or remote code execution (CVE-2020-1654) Article ID : JSA11031 Last Updated: 08 Jul 2020 Version : 1.0 Product Affected: This issue affects Junos OS 18.1, 18.2, 18.3, 18.4, 19.1, 19.2, 19.3. Affected platforms: SRX Series. Problem: On Juniper Networks SRX Series with ICAP (Internet Content Adaptation Protocol) redirect service enabled, processing a malformed HTTP message can lead to a Denial of Service (DoS) or Remote Code Execution (RCE) Continued processing of this malformed HTTP message may result in an extended Denial of Service (DoS) condition. The offending HTTP message that causes this issue may originate both from the HTTP server or the HTTP client. This issue affects Juniper Networks Junos OS on SRX Series: 18.1 versions prior to 18.1R3-S9 ; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3; 18.3 versions prior to 18.3R1-S7, 18.3R2-S4, 18.3R3-S1; 18.4 versions prior to 18.4R1-S7, 18.4R2-S4, 18.4R3; 19.1 versions prior to 19.1R1-S5, 19.1R2; 19.2 versions prior to 19.2R1-S2, 19.2R2; 19.3 versions prior to 19.3R2. This issue does not affect Juniper Networks Junos OS prior to 18.1R1. This issue may occur only when ICAP Redirect Service is enabled. The examples of minimum config stanza affected by this issue: [services icap-redirect profile <ICAP_PROFILE_NAME>] in combination with: [security policies from-zone <ZONE_NAME> to-zone <ZONE_NAME> policy <POLICY_NAME> then permit application-services <ICAP_PROFILE_NAME>] Juniper SIRT is not aware of any malicious exploitation of this vulnerability. This issue was seen during production usage. This issue has been assigned CVE-2020-1654 . Solution: The following software releases have been updated to resolve this specific issue: 18.1R3-S9, 18.2R2-S7, 18.2R3-S3, 18.3R1-S7, 18.3R2-S4, 18.3R3-S1, 18.4R1-S7, 18.4R2-S4, 18.4R3, 19.1R1-S5, 19.1R2, 19.2R1-S2, 19.2R2, 19.3R2, 19.4R1, and all subsequent releases. This issue is being tracked as 1460035 . Workaround: Disable ICAP redirect service otherwise there are no viable workarounds for this issue. Implementation: Software releases or updates are available for download at https:// www.juniper.net/support/downloads/ . Modification History: 2020-07-08: Initial publication CVSS Score: 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) Severity Level: Critical Severity Assessment: Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories." - --------------------------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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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXwgD1uNLKJtyKPYoAQjCTA//cRniSPx0XgZIhTapkyyPe7xXR8CDRiSz Cvj/FAo6/oi6H21jnCF1hcFap4WOFqg7sax/ejacX5vfxIPpvpes66vc/mlASmeq 1Klqm6pm1UOfAC/ekYs8FyZ36Zxl82foO1mTLfv0jsVtOcWFMz2pL00N1A25kHof mxerYhWQQwL+X3wVkRnYwB/pzmkuhwp9QyqY+ODvXOaIJu9Ejqf6GaXb0CjCQHE/ n72nH5FBDTkJhWTsV2T2GNkZ85OxxbJPiuI6kofh9SFowFKaeH3QUDbjrweF7qjy nhy+9MNrNpkwrDBTeHzHl9xl5+72HQjUHfiYl3NfxkD59FCRiEEFK5M9SOkdsa77 X9V4rUqoJj+f2TGUFEPM56DlMXiFCq8J/yoenynZVzMpqNXc7y/HfImoRUKZZDJw Tdq5l6tt/R3W/t5Za2Xbtc6vYz/UJ2ko3XHuPJL6d+EOB0oc+5SV0yH+gGwHc3Im RyxTw43Npw34v2v8+zLlYRknG+mCo+c/t2gvGbFOhUxB0q3fwFAVdjnNkKni+KhR nbctvmM5wfxE7DmUG7VECroM+2i6kw0HdOlD5+unThqnh1/uBFPMdlHCkrqVC6AY B1F0aNzZLWf/C7ta19V5O0nF5XiUqkIEcUdyKAWCI0jeHQdmT3vg2YCPDeWGRnV9 orwh/YfRNow= =Gy84 -----END PGP SIGNATURE-----