CVE-2021-26731

CVSS V2 None CVSS V3 Critical 9.8
Description
Command injection and multiple stack-based buffer overflows vulnerabilities in the modifyUserb_func function of spx_restservice allow an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
Overview
  • CVE ID
  • CVE-2021-26731
  • Assigner
  • prodsec@nozominetworks.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-10-24T14:15:48
  • Last Modified Date
  • 2023-02-03T15:08:45
Weakness Enumerations
CWE URL
CWE-77 http://cwe.mitre.org/data/definitions/77.html
CWE-121 http://cwe.mitre.org/data/definitions/121.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:* 0 OR
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://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/
https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26731/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-26731
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26731
History
Created Old Value New Value Data Type Notes
2022-10-24 15:00:09 Added to TrackCVE
2022-12-07 11:06:37 2022-10-24T14:15Z 2022-10-24T14:15:48 CVE Published Date updated
2022-12-07 11:06:37 2022-12-01T17:15:10 CVE Modified Date updated
2022-12-07 11:06:37 Undergoing Analysis Vulnerability Status updated
2022-12-07 11:07:03 References updated
2023-02-03 15:13:57 2023-02-03T15:08:45 CVE Modified Date updated
2023-02-03 15:13:57 Undergoing Analysis Analyzed Vulnerability Status updated
2023-02-03 15:13:58 Weakness Enumeration update