The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment through device management services. This issue affects: Juniper Networks Junos OS on cSRX Series: All versions prior to 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.
Published 2021-04-22 20:15:10
Updated 2022-09-20 17:08:36
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-0266

0.22%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-0266

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST
8.1
HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
2.2
5.9
Juniper Networks, Inc.

CWE ids for CVE-2021-0266

  • The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered.
    Assigned by: sirt@juniper.net (Secondary)
  • The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-0266

  • https://kb.juniper.net/JSA11157
    2021-04 Security Bulletin: cSRX: Use of Hard-coded Cryptographic Keys allows an attacker to take control of the device through device management services. (CVE-2021-0266) - Juniper Networks
    Vendor Advisory

Products affected by CVE-2021-0266

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