CVE-2021-31349

published 2021-10-19

CVE-2021-31349: The usage of an internal HTTP header created an authentication bypass vulnerability (CWE-287), allowing an attacker to view internal files, change settings…

Priority P2 62 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

The usage of an internal HTTP header created an authentication bypass vulnerability (CWE-287), allowing an attacker to view internal files, change settings, manipulate services and execute arbitrary code. This issue affects all Juniper Networks 128 Technology Session Smart Router versions prior to 4.5.11, and all versions of 5.0 up to and including 5.0.1.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
juniper	128_technology_session_smart_router_firmware	< 4.5.11	4.5.11
juniper	128_technology_session_smart_router_firmware	5.0.0 – 5.0.1	—
juniper_networks	128_technology_session_smart_router	5.0 – 5.0.1	—
juniper_networks	128_technology_session_smart_router	>= unspecified < 4.5.11	4.5.11

Detection & IOCs extracted from sources · hover to see the quote

• → Authentication bypass is achieved via a crafted/abused internal HTTP header — monitor for unexpected or spoofed internal HTTP headers in requests to the 128 Technology Session Smart Router management interface ↗

• · All versions of Juniper Networks 128 Technology Session Smart Router prior to 4.5.11 are vulnerable, as well as all 5.0 versions up to and including 5.0.1. Ensure patching to 4.5.11+ or 5.0.2+ to remediate. ↗

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

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CWE-287