{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2024-21610", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2023-12-27T19:38:25.709Z", "datePublished": "2024-04-12T14:55:15.514Z", "dateUpdated": "2024-08-01T22:27:35.697Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "platforms": [ "MX Series" ], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [ { "lessThan": "20.4R3-S9", "status": "affected", "version": "0", "versionType": "semver" }, { "lessThan": "21.2R3-S7", "status": "affected", "version": "21.2", "versionType": "semver" }, { "lessThan": "21.3R3-S5", "status": "affected", "version": "21.3", "versionType": "semver" }, { "lessThan": "21.4R3-S5", "status": "affected", "version": "21.4", "versionType": "semver" }, { "lessThan": "22.1R3-S4", "status": "affected", "version": "22.1", "versionType": "semver" }, { "lessThan": "22.2R3-S3", "status": "affected", "version": "22.2", "versionType": "semver" }, { "lessThan": "22.3R3-S2", "status": "affected", "version": "22.3", "versionType": "semver" }, { "lessThan": "22.4R3", "status": "affected", "version": "22.4", "versionType": "semver" }, { "lessThan": "23.2R1-S2, 23.2R2", "status": "affected", "version": "23.2", "versionType": "semver" } ] } ], "datePublic": "2024-04-10T16:00:00.000Z", "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "An Improper Handling of Exceptional Conditions vulnerability in the Class of Service daemon (cosd) of Juniper Networks Junos OS on MX Series allows an authenticated, network-based attacker with low privileges to cause a limited Denial of Service (DoS).

In a scaled subscriber scenario when specific low privileged commands, received over NETCONF, SSH or telnet, are handled by cosd on behalf of mgd, the respective child management daemon (mgd) processes will get stuck. In case of (Netconf over) SSH this leads to stuck SSH sessions, so that when the connection-limit for SSH is reached new sessions can't be established anymore. A similar behavior will be seen for telnet etc.

Stuck mgd processes can be monitored by executing the following command:

  user@host> show system processes extensive | match mgd | match sbwait

This issue affects Juniper Networks Junos OS on MX Series:
All versions earlier than 20.4R3-S9;
21.2 versions earlier than 21.2R3-S7;
21.3 versions earlier than 21.3R3-S5;
21.4 versions earlier than 21.4R3-S5;
22.1 versions earlier than 22.1R3-S4;
22.2 versions earlier than 22.2R3-S3;
22.3 versions earlier than 22.3R3-S2;
22.4 versions earlier than 22.4R3;
23.2 versions earlier than 23.2R1-S2, 23.2R2.
" } ], "value": "An Improper Handling of Exceptional Conditions vulnerability in the Class of Service daemon (cosd) of Juniper Networks Junos OS on MX Series allows an authenticated, network-based attacker with low privileges to cause a limited Denial of Service (DoS).\n\nIn a scaled subscriber scenario when specific low privileged commands, received over NETCONF, SSH or telnet, are handled by cosd on behalf of mgd, the respective child management daemon (mgd) processes will get stuck. In case of (Netconf over) SSH this leads to stuck SSH sessions, so that when the connection-limit for SSH is reached new sessions can't be established anymore. A similar behavior will be seen for telnet etc.\n\nStuck mgd processes can be monitored by executing the following command:\n\n  user@host> show system processes extensive | match mgd | match sbwait\n\nThis issue affects Juniper Networks Junos OS on MX Series:\nAll versions earlier than 20.4R3-S9;\n21.2 versions earlier than 21.2R3-S7;\n21.3 versions earlier than 21.3R3-S5;\n21.4 versions earlier than 21.4R3-S5;\n22.1 versions earlier than 22.1R3-S4;\n22.2 versions earlier than 22.2R3-S3;\n22.3 versions earlier than 22.3R3-S2;\n22.4 versions earlier than 22.4R3;\n23.2 versions earlier than 23.2R1-S2, 23.2R2." } ], "exploits": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

" } ], "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] }, { "cvssV4_0": { "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 5.3, "baseSeverity": "MEDIUM", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-755", "description": "CWE-755 Improper Handling of Exceptional Conditions", "lang": "en", "type": "CWE" } ] }, { "descriptions": [ { "description": "Denial of Service (DoS)", "lang": "en" } ] } ], "providerMetadata": { "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2024-05-16T20:03:00.862Z" }, "references": [ { "tags": [ "vendor-advisory" ], "url": "http://supportportal.juniper.net/JSA75751" }, { "tags": [ "technical-description" ], "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" } ], "solutions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "

The following software releases have been updated to resolve this specific issue: Junos OS: 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R1-S2, 23.2R2, 23.4R1, and all subsequent releases.

" } ], "value": "The following software releases have been updated to resolve this specific issue: Junos OS: 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R1-S2, 23.2R2, 23.4R1, and all subsequent releases." } ], "source": { "advisory": "JSA75751", "defect": [ "1757003" ], "discovery": "USER" }, "timeline": [ { "lang": "en", "time": "2024-04-10T16:00:00.000Z", "value": "Initial Publication" } ], "title": "Junos OS: MX Series: In a scaled subscriber scenario if CoS information is gathered mgd processes gets stuck", "workarounds": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "

While not a workaround, the number of stuck mgd processes can be monitored and once they reach a high level they can be proactively terminated.

" } ], "value": "While not a workaround, the number of stuck mgd processes can be monitored and once they reach a high level they can be proactively terminated." } ], "x_generator": { "engine": "Vulnogram 0.1.0-av217" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2024-07-31T17:38:19.364494Z", "id": "CVE-2024-21610", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-31T17:38:26.397Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-01T22:27:35.697Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "vendor-advisory", "x_transferred" ], "url": "http://supportportal.juniper.net/JSA75751" }, { "tags": [ "technical-description", "x_transferred" ], "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" } ] } ] } }