CVE intelligence and bounded remediation

CVE-2022-42787 — Multiple W&T products of the Comserver Series use a small number space for allocating sessions ids

High CVSS 8.8

Multiple W&T products of the Comserver Series use a small number space for allocating sessions ids. After login of an user an unathenticated remote attacker can brute force the users session id and get access to his account on the the device. As the user needs to log in for the attack to be successful a user interaction is required.

Severity
High
CVSS
8.8 (3.1)
Published
2022-11-10
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-330

Affected products

  • wut / at-modem-emulator_firmware
  • wut / com-server_++_firmware
  • wut / com-server_20ma_firmware
  • wut / com-server_highspeed_100basefx_firmware
  • wut / com-server_highspeed_100baselx_firmware
  • wut / com-server_highspeed_19"_1port_firmware

Showing 6 representative product identities from 17 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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