CVE-2021-36767

CVSS V2 High 7.5 CVSS V3 Critical 9.8
Description
In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server's access password. The attacker may then crack this hash offline in order to successfully login to the server.
Overview
  • CVE ID
  • CVE-2021-36767
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-10-08T15:15:09
  • Last Modified Date
  • 2022-04-29T12:49:37
Weakness Enumerations
CWE URL
CWE-916 http://cwe.mitre.org/data/definitions/916.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:digi:realport:*:*:*:*:*:linux:*:* 1 OR 1.9-40
cpe:2.3:a:digi:realport:*:*:*:*:*:windows:*:* 1 OR 4.10.490
AND
cpe:2.3:o:digi:connectport_ts_8\/16_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:connectport_ts_8\/16:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:connectport_lts_8\/16\/32_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:connectport_lts_8\/16\/32:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:passport_integrated_console_server_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:passport_integrated_console_server:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:cm_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:cm:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:portserver_ts_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:portserver_ts:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:portserver_ts_mei_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:portserver_ts_mei:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:portserver_ts_mei_hardened_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:portserver_ts_mei_hardened:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:portserver_ts_m_mei_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:portserver_ts_m_mei:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:6350-sr_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:6350-sr:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:portserver_ts_p_mei_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:portserver_ts_p_mei:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:transport_wr11_xt_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:transport_wr11_xt:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:one_ia_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:one_ia:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:wr31_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:wr31:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:wr44_r_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:wr44_r:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:connect_es_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:connect_es:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:wr21_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:wr21:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:connectcore_8x_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:connectcore_8x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:one_iap_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:one_iap:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:one_iap_haz_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:one_iap_haz:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:connectcore_8x_sbc_pro_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:connectcore_8x_sbc_pro:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:connectcore_8x_som_dualxz_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:connectcore_8x_som_dualxz:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:digi:connectcore_8x_som_quadxplus_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:digi:connectcore_8x_som_quadxplus:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 7.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-36767
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36767
History
Created Old Value New Value Data Type Notes
2022-05-08 06:20:36 Added to TrackCVE
2022-12-05 12:04:38 2021-10-08T15:15Z 2021-10-08T15:15:09 CVE Published Date updated
2022-12-05 12:04:38 2022-04-29T12:49:37 CVE Modified Date updated
2022-12-05 12:04:38 Analyzed Vulnerability Status updated