CVE-2022-42787 (GCVE-0-2022-42787)

Vulnerability from cvelistv5 – Published: 2022-11-10 11:06 – Updated: 2025-05-01 19:01
VLAI?
Title
Wiesemann & Theis: Small number space for allocating session id in Com-Server family
Summary
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 ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-330 - Use of Insufficiently Random Values
Assigner
References
Impacted products
Vendor Product Version
Wiesemann & Theis Com-Server LC Affected: 1.0 , < 1.48 (semver)
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    Wiesemann & Theis Com-Server PoE 3 x Isolated Affected: 1.0 , < 1.48 (semver)
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    Wiesemann & Theis Com-Server 20mA Affected: 1.0 , < 1.48 (semver)
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    Wiesemann & Theis Com-Server ++ Affected: 1.0 , < 1.48 (semver)
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    Wiesemann & Theis AT-Modem-Emulator Affected: 1.0 , < 1.48 (semver)
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    Wiesemann & Theis Com-Server UL Affected: 1.0 , < 1.48 (semver)
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    Wiesemann & Theis Com-Server Highspeed 100BaseFX Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed 100BaseLX Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed Office 1 Port Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed Office 4 Port Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed Industry Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed OEM Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed Compact Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed Isolated Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed 19" 1Port Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed 19" 4Port Affected: 1.0 , < 1.76 (semver)
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    Wiesemann & Theis Com-Server Highspeed PoE Affected: 1.0 , < 1.76 (semver)
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\"version\": \"1.0\", \"lessThan\": \"1.48\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed 100BaseFX\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed 100BaseLX\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed Office 1 Port\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed Office 4 Port\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed Industry\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed OEM\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed Compact\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed Isolated\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed 19\\\" 1Port\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed 19\\\" 4Port\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Wiesemann \u0026 Theis\", \"product\": \"Com-Server Highspeed PoE\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0\", \"lessThan\": \"1.76\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2022-11-07T10:00:00.000Z\", \"references\": [{\"url\": \"https://cert.vde.com/de/advisories/VDE-2022-043\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Multiple W\u0026T 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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Multiple W\u0026amp;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.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-330\", \"description\": \"CWE-330 Use of Insufficiently Random Values\"}]}], \"providerMetadata\": {\"orgId\": \"270ccfa6-a436-4e77-922e-914ec3a9685c\", \"shortName\": \"CERTVDE\", \"dateUpdated\": \"2022-12-01T13:56:46.185Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-42787\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-01T19:01:20.740Z\", \"dateReserved\": \"2022-10-11T13:32:19.672Z\", \"assignerOrgId\": \"270ccfa6-a436-4e77-922e-914ec3a9685c\", \"datePublished\": \"2022-11-10T11:06:20.856Z\", \"requesterUserId\": \"a1e5283b-8f0d-401e-98b2-bc6219c0e8d1\", \"assignerShortName\": \"CERTVDE\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.