CVE-2021-40342

Use of default key for encryption

Published Jan 5, 2023 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description

In the DES implementation, the affected product versions use a default key for encryption. Successful exploitation allows an attacker to obtain sensitive information and gain access to the network elements that are managed by the affected products versions.





This issue affects



* FOXMAN-UN product: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN-UN R9C;
* UNEM product: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C.




List of CPEs:
* cpe:2.3:a:hitachienergy:foxman-un:R16A:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:foxman-un:R15B:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:foxman-un:R15A:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:foxman-un:R14B:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:foxman-un:R14A:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:foxman-un:R11B:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:foxman-un:R11A:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:foxman-un:R10C:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:foxman-un:R9C:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:unem:R16A:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:unem:R15B:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:unem:R15A:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:unem:R14B:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:unem:R14A:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:unem:R11B:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:unem:R11A:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:unem:R10C:*:*:*:*:*:*:*
* cpe:2.3:a:hitachienergy:unem:R9C:*:*:*:*:*:*:*






Remediation

Vendor Workaround

The vulnerabilities are partially remediated in FOXMAN-UN R16A or UNEM R16A, the full remediation will be done in the upcoming release (planned). For immediate recommended mitigation actions if using FOXMAN-UN R16A or UNEM R16A, please refer to the Database contains credentials with weak encryption clause of section Mitigation Factors/Workarounds in the respective products' advisory. For immediate recommended mitigation actions if using FOXMAN-UN R15B or UNEM R15B and earlier, please refer to the multiple clauses of section Mitigation Factors/Workarounds in the advisory * Secure the NMS CLIENT/SERVER communication. * Embedded FOXCST with RADIUS authentication should be avoided. * Database contains credentials with weak encryption.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-27521 In the DES implementation, the affected product versions use a default key for encryption. Successful exploitation allows an attacker to obtain sensitive information and gain access to the network elements that are managed by the affected products versions. This issue affects * FOXMAN-UN product: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN-UN R9C; * UNEM product: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C. List of CPEs: * cpe:2.3:a:hitachienergy:foxman-un:R16A:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:foxman-un:R15B:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:foxman-un:R15A:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:foxman-un:R14B:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:foxman-un:R14A:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:foxman-un:R11B:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:foxman-un:R11A:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:foxman-un:R10C:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:foxman-un:R9C:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:unem:R16A:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:unem:R15B:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:unem:R15A:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:unem:R14B:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:unem:R14A:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:unem:R11B:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:unem:R11A:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:unem:R10C:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:unem:R9C:*:*:*:*:*:*:*
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Hitachi Energy
Published
Updated
Apr 10, 2025, 2:07 PM
Reserved
Aug 31, 2021, 8:24 PM
Status
Modified
Published
Jan 5, 2023, 10:15 PM
Modified
Jun 17, 2026, 4:06 AM