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CERTVDECVE-2022-42787

HistoryNov 10, 2022 - 12:15 p.m.

CVE-2022-42787

2022-11-1012:15:10

CWE-330

CERTVDE

web.nvd.nist.gov

cve-2022-42787

w&t products

comserver series

session id

brute force

vulnerability

nvd

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

8.5

Confidence

High

EPSS

0.003

Percentile

70.5%

JSON

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.

Affected configurations

Nvd

Node

wutat-modem-emulatorMatch-

AND

wutat-modem-emulator_firmwareRange<1.48

Node

wutcom-server_\+\+Match-

AND

wutcom-server_\+\+_firmwareRange<1.48

Node

wutcom-server_20maMatch-

AND

wutcom-server_20ma_firmwareRange<1.48

Node

wutcom-server_highspeed_100basefxMatch-

AND

wutcom-server_highspeed_100basefx_firmwareRange<1.76

Node

wutcom-server_highspeed_100baselxMatch-

AND

wutcom-server_highspeed_100baselx_firmwareRange<1.76

Node

wutcom-server_highspeed_19\"_1portMatch-

AND

wutcom-server_highspeed_19\"_1port_firmwareRange<1.76

Node

wutcom-server_highspeed_19\"_4portMatch-

AND

wutcom-server_highspeed_19\"_4port_firmwareRange<1.76

Node

wutcom-server_highspeed_compactMatch-

AND

wutcom-server_highspeed_compact_firmwareRange<1.76

Node

wutcom-server_highspeed_industry_firmwareRange<1.76

AND

wutcom-server_highspeed_industryMatch-

Node

wutcom-server_highspeed_isolated_firmwareRange<1.76

AND

wutcom-server_highspeed_isolatedMatch-

Node

wutcom-server_highspeed_oem_firmwareRange<1.76

AND

wutcom-server_highspeed_oemMatch-

Node

wutcom-server_highspeed_office_1port_firmwareRange<1.76

AND

wutcom-server_highspeed_office_1portMatch-

Node

wutcom-server_highspeed_office_4port_firmwareRange<1.76

AND

wutcom-server_highspeed_office_4portMatch-

Node

wutcom-server_highspeed_poe_firmwareRange<1.76

AND

wutcom-server_highspeed_poeMatch-

Node

wutcom-server_highspeed_lc_firmwareRange<1.48

AND

wutcom-server_highspeed_lcMatch-

Node

wutcom-server_highspeed_ul_firmwareRange<1.48

AND

wutcom-server_highspeed_ulMatch-

Node

wutcom-server_highspeed_poe_3x_isolated_firmwareRange<1.48

AND

wutcom-server_highspeed_poe_3x_isolatedMatch-

VendorProductVersionCPE
wutat-modem-emulator-cpe:2.3:h:wut:at-modem-emulator:-:*:*:*:*:*:*:*
wutat-modem-emulator_firmware*cpe:2.3:o:wut:at-modem-emulator_firmware:*:*:*:*:*:*:*:*
wutcom-server_\+\+-cpe:2.3:h:wut:com-server_\+\+:-:*:*:*:*:*:*:*
wutcom-server_\+\+_firmware*cpe:2.3:o:wut:com-server_\+\+_firmware:*:*:*:*:*:*:*:*
wutcom-server_20ma-cpe:2.3:h:wut:com-server_20ma:-:*:*:*:*:*:*:*
wutcom-server_20ma_firmware*cpe:2.3:o:wut:com-server_20ma_firmware:*:*:*:*:*:*:*:*
wutcom-server_highspeed_100basefx-cpe:2.3:h:wut:com-server_highspeed_100basefx:-:*:*:*:*:*:*:*
wutcom-server_highspeed_100basefx_firmware*cpe:2.3:o:wut:com-server_highspeed_100basefx_firmware:*:*:*:*:*:*:*:*
wutcom-server_highspeed_100baselx-cpe:2.3:h:wut:com-server_highspeed_100baselx:-:*:*:*:*:*:*:*
wutcom-server_highspeed_100baselx_firmware*cpe:2.3:o:wut:com-server_highspeed_100baselx_firmware:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
wut	at-modem-emulator	-	cpe:2.3:h:wut:at-modem-emulator:-:::::::*
wut	at-modem-emulator_firmware	*	cpe:2.3:o:wut:at-modem-emulator_firmware::::::::
wut	com-server_\+\+	-	cpe:2.3:h:wut:com-server_\+\+:-:::::::*
wut	com-server_\+\+_firmware	*	cpe:2.3:o:wut:com-server_\+\+_firmware::::::::
wut	com-server_20ma	-	cpe:2.3:h:wut:com-server_20ma:-:::::::*
wut	com-server_20ma_firmware	*	cpe:2.3:o:wut:com-server_20ma_firmware::::::::
wut	com-server_highspeed_100basefx	-	cpe:2.3:h:wut:com-server_highspeed_100basefx:-:::::::*
wut	com-server_highspeed_100basefx_firmware	*	cpe:2.3:o:wut:com-server_highspeed_100basefx_firmware::::::::
wut	com-server_highspeed_100baselx	-	cpe:2.3:h:wut:com-server_highspeed_100baselx:-:::::::*
wut	com-server_highspeed_100baselx_firmware	*	cpe:2.3:o:wut:com-server_highspeed_100baselx_firmware::::::::

Rows per page:

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CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server LC",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.48",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server PoE 3 x Isolated",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.48",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server 20mA",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.48",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server ++",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.48",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "AT-Modem-Emulator",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.48",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server UL",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.48",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed 100BaseFX",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed 100BaseLX",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed Office 1 Port",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed Office 4 Port",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed Industry",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed OEM",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed Compact",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed Isolated",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed 19\" 1Port",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed 19\" 4Port",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Com-Server Highspeed PoE",
    "vendor": "Wiesemann & Theis",
    "versions": [
      {
        "lessThan": "1.76",
        "status": "affected",
        "version": "1.0",
        "versionType": "semver"
      }
    ]
  }
]

References

cert.vde.com/de/advisories/VDE-2022-043

Social References

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

8.5

Confidence

High

EPSS

0.003

Percentile

70.5%

JSON

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