CVE-2021-35003

CVSS V2 High 10 CVSS V3 Critical 9.8
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer C90 1.0.6 Build 20200114 rel.73164(5553) routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of DNS responses. A crafted DNS message can trigger an overflow of a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14655.
Overview
  • CVE ID
  • CVE-2021-35003
  • Assigner
  • zdi-disclosures@trendmicro.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-01-21T16:15:07
  • Last Modified Date
  • 2022-01-27T18:31:58
Weakness Enumerations
CWE URL
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:tp-link:archer_c90_firmware:1.0.6:build_20200114:*:*:*:*:*:* 1 OR
cpe:2.3:h:tp-link:archer_c90:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
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.zerodayinitiative.com/advisories/ZDI-22-080/ Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-35003
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35003
History
Created Old Value New Value Data Type Notes
2022-05-10 06:35:59 Added to TrackCVE
2022-12-06 07:23:41 2022-01-21T16:15Z 2022-01-21T16:15:07 CVE Published Date updated
2022-12-06 07:23:41 2022-01-27T18:31:58 CVE Modified Date updated
2022-12-06 07:23:41 Analyzed Vulnerability Status updated