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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.0146 JSA11262 - 2022-01 Security Bulletin: Junos Fusion: A Satellite Device can be controlled by rewiring it to a foreign AD causing a DoS (CVE-2022-22154) 13 January 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Junos OS Publisher: Juniper Networks Operating System: Juniper Impact/Access: Denial of Service -- Console/Physical Resolution: Patch/Upgrade CVE Names: CVE-2022-22154 Original Bulletin: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11262 - --------------------------BEGIN INCLUDED TEXT-------------------- 2022-01 Security Bulletin: Junos Fusion: A Satellite Device can be controlled by rewiring it to a foreign AD causing a DoS (CVE-2022-22154) Article ID : JSA11262 Last Updated: 12 Jan 2022 Version : 1.0 Product Affected: This issue affects Junos OS 18.4, 19.1, 19.2. Problem: In a Junos Fusion scenario an External Control of Critical State Data vulnerability in the Satellite Device (SD) control state machine of Juniper Networks Junos OS allows an attacker who is able to make physical changes to the cabling of the device to cause a denial of service (DoS). An SD can get rebooted and subsequently controlled by an Aggregation Device (AD) which does not belong to the original Fusion setup and is just connected to an extended port of the SD. To carry out this attack the attacker needs to have physical access to the cabling between the SD and the original AD. This issue affects Juniper Networks Junos OS: o 16.1R1 and later versions prior to 18.4R3-S10; o 19.1 versions prior to 19.1R3-S7; o 19.2 versions prior to 19.2R3-S4. This issue does not affect Juniper Networks Junos OS versions prior to 16.1R1. 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-2022-22154 . Solution: The following software releases have been updated to resolve this specific issue: 18.4R3-S10, 19.1R3-S7, 19.2R3-S4, 19.3R1, and all subsequent releases. This issue is being tracked as 1425509 . Workaround: There are no viable workarounds for this issue other than ensuring that the wiring between the AD and the SD can't be tampered with. Implementation: Software releases or updates are available for download at https:// support.juniper.net/support/downloads/ Modification History: 2022-01-12: Initial Publication. CVSS Score: 6.8 (CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) Severity Level: Medium 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. 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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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYd+OsONLKJtyKPYoAQhl2g//a+KgijUJAqUJsUvzQYIZ8xf9r3XaSERT vQ0SrAdSNhd1ZJXq2IhleDlrxNMGq6oGn8E+TnXsD5T6xNT4eUqrNf8qg2WWv/cv CWFllo1/LSn31OM4iVxC53fyg2OMMaNsYbCBtl0DPeC+Qx77yekOb5Lo3BLn7q6e u6Wxd59smNr8O7qAmgQzcAaaIEG87XoTeRxkswdi9i870A3SuSKC4wlX4A8LnFH5 Mfe9S0dWcpWrHpESrQStQf64l3nJAQzxWbshrG2aVOTPP0Y3Z9qPQTWmhXKtH8Sq tKYrS3kPbc5q5/rjZ2jgOzRg8iSQ7SIGJPyufQMNYo081vxr6AcGFXK6cKl2Z+Ol qoxvSDeTZF1VrOSZVmTUqb+UaDLcklj0D1FG42LoIxRs9JpALKkBmb5cfkNy9WWq uV8+RpsqEx5/kAChDLd4XLgmvyBqCURasfSzIkEYaLCxWKzZ2tr/CiusWnw2VHuS +vpNByj/79B7bYZY+dIcMEyW8SSQ0C1SqUFWAahzyLxeeAHqG5UujF42vkM0ROI5 4dvTKtJv4HLcGPh/18Rp/jS+LJ1GEwB9y65Chl3wh6kByDWszsqgri+TVeV8/PMM zUVwOBlVrgGlDBJJN0nljrRUQU37rXcHI2Gm/HIzkdJ1VcR/O252cCSFiawGGqya oOdkKLWhPjc= =nADt -----END PGP SIGNATURE-----