CVE-2017-2891 - OpenCVE

An exploitable use-after-free vulnerability exists in the HTTP server implementation of Cesanta Mongoose 6.8. An ordinary HTTP POST request with a CGI target can cause a reuse of previously freed pointer potentially resulting in remote code execution. An attacker needs to send this HTTP request over the network to trigger this vulnerability.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Cesanta	Mongoose

Configuration 1 [-]

cpe:2.3:a:cesanta:mongoose:6.8:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0398

History

No history.

MITRE

Status: PUBLISHED

Assigner: talos

Published: 2017-11-07T16:00:00Z

Updated: 2024-09-16T22:52:04.709Z

Reserved: 2016-12-01T00:00:00

Link: CVE-2017-2891

Vulnrichment

No data.

NVD

Status : Analyzed

Published: 2017-11-07T16:29:00.717

Modified: 2022-06-07T17:24:17.903

Link: CVE-2017-2891

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "Mongoose", "vendor": "Cesanta", "versions": [{"status": "affected", "version": "6.8"}]}], "datePublic": "2017-10-31T00:00:00", "descriptions": [{"lang": "en", "value": "An exploitable use-after-free vulnerability exists in the HTTP server implementation of Cesanta Mongoose 6.8. An ordinary HTTP POST request with a CGI target can cause a reuse of previously freed pointer potentially resulting in remote code execution. An attacker needs to send this HTTP request over the network to trigger this vulnerability."}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"description": "remote code execution", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-04-19T18:24:18", "orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "shortName": "talos"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0398"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "talos-cna@cisco.com", "DATE_PUBLIC": "2017-10-31T00:00:00", "ID": "CVE-2017-2891", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Mongoose", "version": {"version_data": [{"version_value": "6.8"}]}}]}, "vendor_name": "Cesanta"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An exploitable use-after-free vulnerability exists in the HTTP server implementation of Cesanta Mongoose 6.8. An ordinary HTTP POST request with a CGI target can cause a reuse of previously freed pointer potentially resulting in remote code execution. An attacker needs to send this HTTP request over the network to trigger this vulnerability."}]}, "impact": {"cvss": {"baseScore": 9.8, "baseSeverity": "Critical", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "remote code execution"}]}]}, "references": {"reference_data": [{"name": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0398", "refsource": "MISC", "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0398"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T14:09:17.156Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0398"}]}]}, "cveMetadata": {"assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "assignerShortName": "talos", "cveId": "CVE-2017-2891", "datePublished": "2017-11-07T16:00:00Z", "dateReserved": "2016-12-01T00:00:00", "dateUpdated": "2024-09-16T22:52:04.709Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cesanta:mongoose:6.8:*:*:*:*:*:*:*", "matchCriteriaId": "1164ED0F-EE6F-4D14-8227-9EDC2D3EB603", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An exploitable use-after-free vulnerability exists in the HTTP server implementation of Cesanta Mongoose 6.8. An ordinary HTTP POST request with a CGI target can cause a reuse of previously freed pointer potentially resulting in remote code execution. An attacker needs to send this HTTP request over the network to trigger this vulnerability."}, {"lang": "es", "value": "Existe una vulnerabilidad explotable de uso de memoria previamente liberada en la implementaci\u00f3n del servidor HTTP de Cesanta Mongoose 6.8. Una petici\u00f3n POST HTTP normal con un objetivo CGI puede provocar que un puntero previamente liberado se vuelva a utilizar, resultando en una ejecuci\u00f3n remota de c\u00f3digo. Un atacante necesita enviar esta petici\u00f3n HTTP a trav\u00e9s de la red para desencadenar esta vulnerabilidad."}], "id": "CVE-2017-2891", "lastModified": "2022-06-07T17:24:17.903", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "talos-cna@cisco.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-11-07T16:29:00.717", "references": [{"source": "talos-cna@cisco.com", "tags": ["Exploit", "Technical Description", "Third Party Advisory"], "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0398"}], "sourceIdentifier": "talos-cna@cisco.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}