PT-2023-3070 · Juniper Networks · Junos Evolved+1

Published 2023-04-12 · Updated 2023-04-27 · CVE-2023-28964

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 18.1R3-S11 Juniper Networks Junos OS versions 18.2 prior to 18.2R3-S6 Juniper Networks Junos OS versions 18.3 prior to 18.3R3-S4 Juniper Networks Junos OS versions 18.4 prior to 18.4R3-S6 Juniper Networks Junos OS versions 19.1 prior to 19.1R3-S4 Juniper Networks Junos OS versions 19.2 prior to 19.2R3-S1 Juniper Networks Junos OS versions 19.3 prior to 19.3R3-S1 Juniper Networks Junos OS versions 19.4 prior to 19.4R3 Juniper Networks Junos OS versions 20.1 prior to 20.1R2 Juniper Networks Junos OS versions 20.2 prior to 20.2R2 Juniper Networks Junos OS versions 20.3 prior to 20.3R1-S1, 20.3R2 Juniper Networks Junos OS Evolved versions prior to 20.1R3-EVO Juniper Networks Junos OS Evolved versions 20.2 prior to 20.2R2-EVO Juniper Networks Junos OS Evolved versions 20.3 prior to 20.3R2-EVO

Description The issue is related to an Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved. This vulnerability allows a network-based, unauthenticated attacker to cause an RPD crash, leading to a Denial of Service (DoS). Continued receipt and processing of a malformed packet will create a sustained Denial of Service condition. Specifically, upon receipt of a malformed BGP flowspec update, RPD will crash, resulting in a Denial of Service.

Recommendations For Juniper Networks Junos OS versions prior to 18.1R3-S11, update to version 18.1R3-S11 or later. For Juniper Networks Junos OS versions 18.2 prior to 18.2R3-S6, update to version 18.2R3-S6 or later. For Juniper Networks Junos OS versions 18.3 prior to 18.3R3-S4, update to version 18.3R3-S4 or later. For Juniper Networks Junos OS versions 18.4 prior to 18.4R3-S6, update to version 18.4R3-S6 or later. For Juniper Networks Junos OS versions 19.1 prior to 19.1R3-S4, update to version 19.1R3-S4 or later. For Juniper Networks Junos OS versions 19.2 prior to 19.2R3-S1, update to version 19.2R3-S1 or later. For Juniper Networks Junos OS versions 19.3 prior to 19.3R3-S1, update to version 19.3R3-S1 or later. For Juniper Networks Junos OS versions 19.4 prior to 19.4R3, update to version 19.4R3 or later. For Juniper Networks Junos OS versions 20.1 prior to 20.1R2, update to version 20.1R2 or later. For Juniper Networks Junos OS versions 20.2 prior to 20.2R2, update to version 20.2R2 or later. For Juniper Networks Junos OS versions 20.3 prior to 20.3R1-S1, 20.3R2, update to version 20.3R1-S1, 20.3R2 or later. For Juniper Networks Junos OS Evolved versions prior to 20.1R3-EVO, update to version 20.1R3-EVO or later. For Juniper Networks Junos OS Evolved versions 20.2 prior to 20.2R2-EVO, update to version 20.2R2-EVO or later. For Juniper Networks Junos OS Evolved versions 20.3 prior to 20.3R2-EVO, update to version 20.3R2-EVO or later.

Fix

DoS

Weakness Enumeration

CWE-130

Related Identifiers

BDU:2023-03141

CVE-2023-28964

Affected Products

Junos

Junos Evolved

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2023-28964 · Security Note
• https://supportportal.juniper.net/JSA70588 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/692587/?sphrase_id=45522 · Security Note
• https://osv.dev/vulnerability/CVE-2023-28964 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-03141 · Security Note
• https://t.me/cibsecurity/62323 · Telegram Post