CVE-2021-21439 - OpenCVE

DoS attack can be performed when an email contains specially designed URL in the body. It can lead to the high CPU usage and cause low quality of service, or in extreme case bring the system to a halt. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions; 8.0.x version 8.0.13 and prior versions.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

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

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Otrs	Otrs

Configuration 1 [-]

OR	cpe:2.3:a:otrs:otrs:::::community:::*
	cpe:2.3:a:otrs:otrs::::::::
	cpe:2.3:a:otrs:otrs::::::::

No data.

References

Link	Providers
https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html
https://otrs.com/release-notes/otrs-security-advisory-2021-09/

History

No history.

MITRE

Status: PUBLISHED

Assigner: OTRS

Published: 2021-06-14T07:55:10.080008Z

Updated: 2024-09-16T19:52:22.948Z

Reserved: 2020-12-29T00:00:00

Link: CVE-2021-21439

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-06-14T08:15:10.097

Modified: 2023-08-31T03:15:12.097

Link: CVE-2021-21439

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-21439", "assignerOrgId": "2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8", "assignerShortName": "OTRS", "dateUpdated": "2024-09-16T19:52:22.948Z", "dateReserved": "2020-12-29T00:00:00", "datePublished": "2021-06-14T07:55:10.080008Z"}, "containers": {"cna": {"title": "Possible DoS attack using a special crafted URL in email body", "datePublic": "2021-06-14T00:00:00", "providerMetadata": {"orgId": "2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8", "shortName": "OTRS", "dateUpdated": "2023-08-31T02:06:20.978358"}, "descriptions": [{"lang": "en", "value": "DoS attack can be performed when an email contains specially designed URL in the body. It can lead to the high CPU usage and cause low quality of service, or in extreme case bring the system to a halt. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions; 8.0.x version 8.0.13 and prior versions."}], "affected": [{"vendor": "OTRS AG", "product": "((OTRS)) Community Edition", "versions": [{"version": "6.0.1", "status": "affected", "lessThan": "6.0.x*", "versionType": "custom"}]}, {"vendor": "OTRS AG", "product": "OTRS", "versions": [{"version": "7.0.x", "status": "affected", "lessThanOrEqual": "7.0.26", "versionType": "custom"}, {"version": "8.0.x", "status": "affected", "lessThanOrEqual": "8.0.13", "versionType": "custom"}]}], "references": [{"url": "https://otrs.com/release-notes/otrs-security-advisory-2021-09/"}, {"name": "[debian-lts-announce] 20230831 [SECURITY] [DLA 3551-1] otrs2 security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-754: Improper Check for Unusual or Exceptional Conditions", "cweId": "CWE-754"}]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "source": {"advisory": "OSA-2021-09", "defect": ["2021031142000285"], "discovery": "USER"}, "solutions": [{"lang": "en", "value": "Update to OTRS 8.0.14 or OTRS 7.0.27."}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:16:22.212Z"}, "title": "CVE Program Container", "references": [{"url": "https://otrs.com/release-notes/otrs-security-advisory-2021-09/", "tags": ["x_transferred"]}, {"name": "[debian-lts-announce] 20230831 [SECURITY] [DLA 3551-1] otrs2 security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html"}]}]}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:community:*:*:*", "matchCriteriaId": "58EDB086-8414-4EBD-8C19-1402C800DFD6", "versionEndIncluding": "6.0.30", "versionStartIncluding": "6.0.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*", "matchCriteriaId": "4FDBB41C-E915-41DF-8E95-8BB17798F20A", "versionEndExcluding": "7.0.27", "versionStartIncluding": "7.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*", "matchCriteriaId": "042B7D35-918B-4716-A819-9AE29ECF50AD", "versionEndExcluding": "8.0.14", "versionStartIncluding": "8.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "DoS attack can be performed when an email contains specially designed URL in the body. It can lead to the high CPU usage and cause low quality of service, or in extreme case bring the system to a halt. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions; 8.0.x version 8.0.13 and prior versions."}, {"lang": "es", "value": "El ataque de DoS puede ser llevado a cabo cuando un correo electr\u00f3nico contiene una URL especialmente dise\u00f1ada en el cuerpo. Puede conllevar a un alto uso de la CPU y causar una baja calidad de servicio, o en caso extremo llevar el sistema a una parada. Este problema afecta a: OTRS AG ((OTRS)) Community Edition versi\u00f3n 6.0.x, 6.0.1 y versiones posteriores. OTRS AG OTRS versi\u00f3n 7.0.x, 7.0.26 y versiones anteriores; versi\u00f3n 8.0.x, 8.0.13 y versiones anteriores"}], "id": "CVE-2021-21439", "lastModified": "2023-08-31T03:15:12.097", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security@otrs.com", "type": "Secondary"}]}, "published": "2021-06-14T08:15:10.097", "references": [{"source": "security@otrs.com", "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html"}, {"source": "security@otrs.com", "tags": ["Vendor Advisory"], "url": "https://otrs.com/release-notes/otrs-security-advisory-2021-09/"}], "sourceIdentifier": "security@otrs.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-755"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-754"}], "source": "security@otrs.com", "type": "Secondary"}]}