CVE-2021-40341

Weak DES encryption

Published Jan 5, 2023 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
DES cipher, which has inadequate encryption strength, is used Hitachi Energy FOXMAN-UN to encrypt user credentials used to access the Network Elements. Successful exploitation allows sensitive information to be decrypted easily. 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-2021-27520 DES cipher, which has inadequate encryption strength, is used Hitachi Energy FOXMAN-UN to encrypt user credentials used to access the Network Elements. Successful exploitation allows sensitive information to be decrypted easily. 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, 1:31 PM
Reserved
Aug 31, 2021, 8:24 PM
Status
Modified
Published
Jan 5, 2023, 10:15 PM
Modified
Jun 17, 2026, 4:06 AM