ghsa-hqww-3wrx-q5gv
Vulnerability from github
Published
2022-05-24 17:45
Modified
2022-05-24 17:45
Details
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400 and R6700 firmware version 1.0.4.98 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the upnpd service, which listens on UDP port 1900 by default. A crafted MX header field in an SSDP 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-11851.
{ "affected": [], "aliases": [ "CVE-2021-27239" ], "database_specific": { "cwe_ids": [ "CWE-121" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-03-29T21:15:00Z", "severity": "HIGH" }, "details": "This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400 and R6700 firmware version 1.0.4.98 routers. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the upnpd service, which listens on UDP port 1900 by default. A crafted MX header field in an SSDP 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-11851.", "id": "GHSA-hqww-3wrx-q5gv", "modified": "2022-05-24T17:45:37Z", "published": "2022-05-24T17:45:37Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27239" }, { "type": "WEB", "url": "https://kb.netgear.com/000062820/Security-Advisory-for-Stack-based-Buffer-Overflow-Remote-Code-Execution-Vulnerability-on-Some-Routers-PSV-2020-0432" }, { "type": "WEB", "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-206" } ], "schema_version": "1.4.0", "severity": [] }
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Sightings
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.