CVE-2021-0297: Junos OS Evolved: BGP and LDP sessions with TCP MD5 authentication established with peers not configured for authentication
First published: Tue Oct 19 2021(Updated: )
A vulnerability in the processing of TCP MD5 authentication in Juniper Networks Junos OS Evolved may allow a BGP or LDP session configured with MD5 authentication to succeed, even if the peer does not have TCP MD5 authentication enabled. This could lead to untrusted or unauthorized sessions being established, resulting in an impact on confidentiality or stability of the network. This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.3R2-S1-EVO; 20.4 versions prior to 20.4R2-EVO; 21.1 versions prior to 21.1R2-EVO. Juniper Networks Junos OS is not affected by this issue.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper Junos Os Evolved | =20.3-r1 | |
| Juniper Junos Os Evolved | =20.3-r1-s1 | |
| Juniper Junos Os Evolved | =20.3-r2 | |
| Juniper Junos Os Evolved | =20.4-r1 | |
| Juniper Junos Os Evolved | =21.1-r1 |
Remedy
The following software releases have been updated to resolve this specific issue: Junos OS Evolved 20.3R2-S1-EVO, 20.4R2-EVO, 21.1R2-EVO, 21.2R1-EVO, and all subsequent releases.
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Reference Links
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- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
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- agent/weakness
- agent/last-modified-date
- agent/title
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- agent/tags
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- agent/event
- vendor/juniper
- canonical/juniper junos os evolved
- version/juniper junos os evolved/20.3-r1
- version/juniper junos os evolved/20.3-r1-s1
- version/juniper junos os evolved/20.3-r2
- version/juniper junos os evolved/20.4-r1
- version/juniper junos os evolved/21.1-r1