Vulnerability in Juniper Junos OS Evolved
CVE-2021-0297
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Juniper Junos OS Evolved — versions 20.3, 20.4, 21.1
- Juniper Networks Junos OS Evolved — versions unspecified, 20.4, 21.1
Weakness classification (CWE)
References
- kb.juniper.net/JSA11211 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-0297?
- CVE-2021-0297 is a medium-severity vulnerability in Juniper Junos OS Evolved, classified under Improper Handling of Exceptional Conditions. CVSS score: 6.5/10. Published 2021-10-19.
- How severe is CVE-2021-0297?
- Medium severity. CVSS v3 base score is 6.5 out of 10.