CVE-2017-9732 - Vulnerability Details - OpenCVE

The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.04355.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:secure-endpoints:kerberised_netcat:*:*:*:*:*:*:*:*

No data.

No data.

Subscriptions

Vendors	Products
Secure-endpoints Subscribe	Kerberised Netcat Subscribe

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2017-18663	The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html
http://seclists.org/fulldisclosure/2018/Nov/65
https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1
https://github.com/irsl/knc-memory-exhaustion/

History

No history.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-12-20T22:00:00.000Z

Updated: 2024-08-05T17:18:01.106Z

Reserved: 2017-06-16T00:00:00.000Z

Link: CVE-2017-9732

Vulnrichment

No data.

NVD

Status : Modified

Published: 2018-12-20T23:29:00.237

Modified: 2024-11-21T03:36:43.587

Link: CVE-2017-9732

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-400

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2018-11-29T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-12-20T21:57:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1"}, {"name": "20181130 CVE-2017-9732: knc (kerberized netcat) memory exhaustion", "tags": ["mailing-list", "x_refsource_FULLDISC"], "url": "http://seclists.org/fulldisclosure/2018/Nov/65"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/irsl/knc-memory-exhaustion/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2017-9732", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1", "refsource": "CONFIRM", "url": "https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1"}, {"name": "20181130 CVE-2017-9732: knc (kerberized netcat) memory exhaustion", "refsource": "FULLDISC", "url": "http://seclists.org/fulldisclosure/2018/Nov/65"}, {"name": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html"}, {"name": "https://github.com/irsl/knc-memory-exhaustion/", "refsource": "MISC", "url": "https://github.com/irsl/knc-memory-exhaustion/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T17:18:01.106Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1"}, {"name": "20181130 CVE-2017-9732: knc (kerberized netcat) memory exhaustion", "tags": ["mailing-list", "x_refsource_FULLDISC", "x_transferred"], "url": "http://seclists.org/fulldisclosure/2018/Nov/65"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/irsl/knc-memory-exhaustion/"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2017-9732", "datePublished": "2018-12-20T22:00:00.000Z", "dateReserved": "2017-06-16T00:00:00.000Z", "dateUpdated": "2024-08-05T17:18:01.106Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:secure-endpoints:kerberised_netcat:*:*:*:*:*:*:*:*", "matchCriteriaId": "FC734909-600C-43A3-AE43-DE7A0BD8A560", "versionEndExcluding": "1.11-1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host."}, {"lang": "es", "value": "La funci\u00f3n read_packet en knc (Kerberised NetCat) en versiones anteriores a la 1.11-1 es vulnerable a una denegaci\u00f3n de servicio (agotamiento de memoria) que puede explotarse de forma remota sin autenticaci\u00f3n y que podr\u00eda afectar a otros servicios que se ejecutan en el host objetivo."}], "id": "CVE-2017-9732", "lastModified": "2024-11-21T03:36:43.587", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-12-20T23:29:00.237", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Patch", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Mailing List", "Patch", "Third Party Advisory"], "url": "http://seclists.org/fulldisclosure/2018/Nov/65"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://github.com/irsl/knc-memory-exhaustion/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Mailing List", "Patch", "Third Party Advisory"], "url": "http://seclists.org/fulldisclosure/2018/Nov/65"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://github.com/irsl/knc-memory-exhaustion/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}]}