CVE intelligence and bounded remediation
CVE-2021-21729 — Some ZTE products have CSRF vulnerability
Medium
CVSS 6.5
Some ZTE products have CSRF vulnerability. Because some pages lack CSRF random value verification, attackers could perform illegal authorization operations by constructing messages.This affects: ZXHN H168N V3.5.0_EG1T5_TE, V2.5.5, ZXHN H108N V2.5.5_BTMT1
- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Published
- 2021-04-13
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-330, CWE-352
Affected products
- zte / zxhn_h168n_firmware / 3.5.0_eg1t5_te
- zte / zxhn_h108n_firmware / 2.5.5_btmt1
Matched remediation archetype
Cryptography, certificate, signature, and channel validation
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Inventory affected algorithms, key uses, trust stores, certificate validation settings, random sources, and plaintext channels across clients and services.
- Determine which secrets, identities, signatures, or data protections depend on the affected primitive or validation path.
- Check debug, compatibility, fallback, and hostname or audience override settings in build and runtime configuration.
Remediate safely
- Use a maintained platform cryptographic API with approved algorithms, modes, parameters, randomness, and full peer identity validation.
- Remove insecure fallback and validation bypasses; separate keys by purpose and load them from managed secret storage.
- Plan rotation or reissuance for affected keys, certificates, tokens, hashes, or ciphertext and document compatibility sequencing.
Authoritative sources
Complete CVE record and remediation plan
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