cve-2021-31352
Vulnerability from cvelistv5
Published
2021-10-19 18:16
Modified
2024-09-16 19:20
Severity ?
EPSS score ?
Summary
An Information Exposure vulnerability in Juniper Networks SRC Series devices configured for NETCONF over SSH permits the negotiation of weak ciphers, which could allow a remote attacker to obtain sensitive information. A remote attacker with read and write access to network data could exploit this vulnerability to display plaintext bits from a block of ciphertext and obtain sensitive information. This issue affects all Juniper Networks SRC Series versions prior to 4.13.0-R6.
References
▼ | URL | Tags | |
---|---|---|---|
sirt@juniper.net | https://kb.juniper.net/JSA11217 | Exploit, Patch, Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://kb.juniper.net/JSA11217 | Exploit, Patch, Vendor Advisory |
Impacted products
Vendor | Product | Version | |
---|---|---|---|
▼ | Juniper Networks | SRC Series |
Version: unspecified < 4.13.0-R6 |
|
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-03T22:55:53.552Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://kb.juniper.net/JSA11217" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "SRC Series", "vendor": "Juniper Networks", "versions": [ { "lessThan": "4.13.0-R6", "status": "affected", "version": "unspecified", "versionType": "custom" } ] } ], "configurations": [ { "lang": "en", "value": "A sample configuration of NETCONF over SSH is shown below:\n\n netconf {\n ssh {\n port 830;\n }\n }" } ], "datePublic": "2021-10-13T00:00:00", "descriptions": [ { "lang": "en", "value": "An Information Exposure vulnerability in Juniper Networks SRC Series devices configured for NETCONF over SSH permits the negotiation of weak ciphers, which could allow a remote attacker to obtain sensitive information. A remote attacker with read and write access to network data could exploit this vulnerability to display plaintext bits from a block of ciphertext and obtain sensitive information. This issue affects all Juniper Networks SRC Series versions prior to 4.13.0-R6." } ], "exploits": [ { "lang": "en", "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-200", "description": "CWE-200 Information Exposure", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-10-19T18:16:33", "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://kb.juniper.net/JSA11217" } ], "solutions": [ { "lang": "en", "value": "A hotfix has been created to resolve this issue. Contact Juniper Networks Technical Support to request the hotfix.\n\nWeak ciphers are now disabled by default. Only the following ciphers and key-exchange (KEX) algorithms are now enabled by default:\n\n\u2022 Ciphers: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com\n\u2022 KEX Algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1\n\nNote: After upgrading to a fixed release, any manually configured weak ciphers or KEX algorithms for NETCONF will be retained. Administrators should reset their cipher configuration by typing:\n root@src# delete system services netconf ssh\n root@src# commit\n Stopping NETCONF/SSH:\n commit complete.\n\n root@src# set system services netconf ssh" } ], "source": { "advisory": "JSA11217", "defect": [ "1568322" ], "discovery": "INTERNAL" }, "title": "SRC Series: NETCONF over SSH allows negotiation of weak ciphers", "workarounds": [ { "lang": "en", "value": "There are no viable workarounds for this issue." } ], "x_generator": { "engine": "Vulnogram 0.0.9" }, "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "sirt@juniper.net", "DATE_PUBLIC": "2021-10-13T16:00:00.000Z", "ID": "CVE-2021-31352", "STATE": "PUBLIC", "TITLE": "SRC Series: NETCONF over SSH allows negotiation of weak ciphers" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "SRC Series", "version": { "version_data": [ { "version_affected": "\u003c", "version_value": "4.13.0-R6" } ] } } ] }, "vendor_name": "Juniper Networks" } ] } }, "configuration": [ { "lang": "en", "value": "A sample configuration of NETCONF over SSH is shown below:\n\n netconf {\n ssh {\n port 830;\n }\n }" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "An Information Exposure vulnerability in Juniper Networks SRC Series devices configured for NETCONF over SSH permits the negotiation of weak ciphers, which could allow a remote attacker to obtain sensitive information. A remote attacker with read and write access to network data could exploit this vulnerability to display plaintext bits from a block of ciphertext and obtain sensitive information. This issue affects all Juniper Networks SRC Series versions prior to 4.13.0-R6." } ] }, "exploit": [ { "lang": "en", "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability." } ], "generator": { "engine": "Vulnogram 0.0.9" }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-200 Information Exposure" } ] } ] }, "references": { "reference_data": [ { "name": "https://kb.juniper.net/JSA11217", "refsource": "CONFIRM", "url": "https://kb.juniper.net/JSA11217" } ] }, "solution": [ { "lang": "en", "value": "A hotfix has been created to resolve this issue. Contact Juniper Networks Technical Support to request the hotfix.\n\nWeak ciphers are now disabled by default. Only the following ciphers and key-exchange (KEX) algorithms are now enabled by default:\n\n\u2022 Ciphers: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com\n\u2022 KEX Algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1\n\nNote: After upgrading to a fixed release, any manually configured weak ciphers or KEX algorithms for NETCONF will be retained. Administrators should reset their cipher configuration by typing:\n root@src# delete system services netconf ssh\n root@src# commit\n Stopping NETCONF/SSH:\n commit complete.\n\n root@src# set system services netconf ssh" } ], "source": { "advisory": "JSA11217", "defect": [ "1568322" ], "discovery": "INTERNAL" }, "work_around": [ { "lang": "en", "value": "There are no viable workarounds for this issue." } ] } } }, "cveMetadata": { "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "assignerShortName": "juniper", "cveId": "CVE-2021-31352", "datePublished": "2021-10-19T18:16:33.308361Z", "dateReserved": "2021-04-15T00:00:00", "dateUpdated": "2024-09-16T19:20:18.621Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "fkie_nvd": { "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:juniper:session_and_resource_control:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.130r6\", \"matchCriteriaId\": \"F859871E-2194-4F8D-8978-26A032CF77D1\"}]}]}]", "descriptions": "[{\"lang\": \"en\", \"value\": \"An Information Exposure vulnerability in Juniper Networks SRC Series devices configured for NETCONF over SSH permits the negotiation of weak ciphers, which could allow a remote attacker to obtain sensitive information. A remote attacker with read and write access to network data could exploit this vulnerability to display plaintext bits from a block of ciphertext and obtain sensitive information. This issue affects all Juniper Networks SRC Series versions prior to 4.13.0-R6.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad de exposici\\u00f3n de informaci\\u00f3n en los dispositivos de Juniper Networks SRC Series configurados para NETCONF sobre SSH permite una negociaci\\u00f3n de cifrados d\\u00e9biles, lo que podr\\u00eda permitir a un atacante remoto conseguir informaci\\u00f3n confidencial. Un atacante remoto con acceso de lectura y escritura a los datos de la red podr\\u00eda aprovechar esta vulnerabilidad para mostrar bits de texto plano de un bloque de texto cifrado y conseguir informaci\\u00f3n confidencial. Este problema afecta a todas las versiones de Juniper Networks SRC Series anteriores a 4.13.0-R6\"}]", "id": "CVE-2021-31352", "lastModified": "2024-11-21T06:05:28.883", "metrics": "{\"cvssMetricV31\": [{\"source\": \"sirt@juniper.net\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 1.4}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:P/I:N/A:N\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}", "published": "2021-10-19T19:15:08.660", "references": "[{\"url\": \"https://kb.juniper.net/JSA11217\", \"source\": \"sirt@juniper.net\", \"tags\": [\"Exploit\", \"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://kb.juniper.net/JSA11217\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Patch\", \"Vendor Advisory\"]}]", "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": "[{\"source\": \"sirt@juniper.net\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-200\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-327\"}]}]" }, "nvd": "{\"cve\":{\"id\":\"CVE-2021-31352\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2021-10-19T19:15:08.660\",\"lastModified\":\"2024-11-21T06:05:28.883\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An Information Exposure vulnerability in Juniper Networks SRC Series devices configured for NETCONF over SSH permits the negotiation of weak ciphers, which could allow a remote attacker to obtain sensitive information. 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Sightings
Author | Source | Type | Date |
---|
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.