CVE-2023-0026 (GCVE-0-2023-0026)

Vulnerability from cvelistv5 – Published: 2023-06-21 00:00 – Updated: 2024-12-06 19:18
VLAI?
Title
2023-06: Out-of-Cycle Security Bulletin: Junos OS and Junos OS Evolved: A BGP session will flap upon receipt of a specific, optional transitive attribute
Summary
An Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a BGP update message is received over an established BGP session, and that message contains a specific, optional transitive attribute, this session will be torn down with an update message error. This issue cannot propagate beyond an affected system as the processing error occurs as soon as the update is received. This issue is exploitable remotely as the respective attribute can propagate through unaffected systems and intermediate AS (if any). Continuous receipt of a BGP update containing this attribute will create a sustained Denial of Service (DoS) condition. Some customers have experienced these BGP session flaps which prompted Juniper SIRT to release this advisory out of cycle before fixed releases are widely available as there is an effective workaround. This issue affects: Juniper Networks Junos OS 15.1R1 and later versions prior to 20.4R3-S8; 21.1 version 21.1R1 and later versions prior to 21.2R3-S6; 21.3 versions prior to 21.3R3-S5; 21.4 versions prior to 21.4R3-S4; 22.1 versions prior to 22.1R3-S4; 22.2 versions prior to 22.2R3-S2; 22.3 versions prior to 22.3R2-S2, 22.3R3-S1; 22.4 versions prior to 22.4R2-S1, 22.4R3; 23.1 versions prior to 23.1R1-S1, 23.1R2. Juniper Networks Junos OS Evolved All versions prior to 20.4R3-S8-EVO; 21.1 version 21.1R1-EVO and later versions prior to 21.2R3-S6-EVO; 21.3 versions prior to 21.3R3-S5-EVO; 21.4 versions prior to 21.4R3-S4-EVO; 22.1 versions prior to 22.1R3-S4-EVO; 22.2 versions prior to 22.2R3-S2-EVO; 22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO; 22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO; 23.1 versions prior to 23.1R1-S1-EVO, 23.1R2-EVO.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-20 - Improper Input Validation
  • Denial of Service (DoS)
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Unaffected: unspecified , < 15.1R1 (custom)
Affected: unspecified , < 20.4R3-S8 (custom)
Affected: 21.1 , < 21.1* (custom)
Affected: 21.2 , < 21.2R3-S6 (custom)
Affected: 21.3 , < 21.3R3-S5 (custom)
Affected: 21.4 , < 21.4R3-S4 (custom)
Affected: 22.1 , < 22.1R3-S4 (custom)
Affected: 22.2 , < 22.3R2-S2, 22.3R3-S1 (custom)
Affected: 22.3 , < 22.2R3-S2 (custom)
Affected: 22.4 , < 22.4R2-S1, 22.4R3 (custom)
Affected: 23.1 , < 23.1R1-S1, 23.1R2 (custom)
Create a notification for this product.
    Juniper Networks Junos OS Evolved Affected: unspecified , < 20.4R3-S8-EVO (custom)
Affected: 21.1R1-EVO , < 21.1* (custom)
Affected: 21.2 , < 21.2R3-S6-EVO (custom)
Affected: 21.3 , < 21.3R3-S5-EVO (custom)
Affected: 21.4 , < 21.4R3-S4-EVO (custom)
Affected: 22.1 , < 22.1R3-S4-EVO (custom)
Affected: 22.2 , < 22.2R3-S2-EVO (custom)
Affected: 22.3 , < 22.3R2-S2-EVO, 22.3R3-S1-EVO (custom)
Affected: 22.4 , < 22.4R2-S1-EVO, 22.4R3-EVO (custom)
Affected: 23.1 , < 23.1R1-S1-EVO, 23.1R2-EVO (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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Some customers have experienced these BGP session flaps which prompted Juniper SIRT to release this advisory out of cycle before fixed releases are widely available as there is an effective workaround.\\n\\nThis issue affects:\\nJuniper Networks Junos OS\\n15.1R1 and later versions prior to 20.4R3-S8;\\n21.1 version 21.1R1 and later versions prior to 21.2R3-S6;\\n21.3 versions prior to 21.3R3-S5;\\n21.4 versions prior to 21.4R3-S4;\\n22.1 versions prior to 22.1R3-S4;\\n22.2 versions prior to 22.2R3-S2;\\n22.3 versions prior to 22.3R2-S2, 22.3R3-S1;\\n22.4 versions prior to 22.4R2-S1, 22.4R3;\\n23.1 versions prior to 23.1R1-S1, 23.1R2.\\n\\nJuniper Networks Junos OS Evolved\\nAll versions prior to 20.4R3-S8-EVO;\\n21.1 version 21.1R1-EVO and later versions prior to 21.2R3-S6-EVO;\\n21.3 versions prior to 21.3R3-S5-EVO;\\n21.4 versions prior to 21.4R3-S4-EVO;\\n22.1 versions prior to 22.1R3-S4-EVO;\\n22.2 versions prior to 22.2R3-S2-EVO;\\n22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\\n22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO;\\n23.1 versions prior to 23.1R1-S1-EVO, 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\"2024-12-06T19:18:25.424Z\"}}], \"cna\": {\"title\": \"2023-06: Out-of-Cycle Security Bulletin: Junos OS and Junos OS Evolved: A BGP session will flap upon receipt of a specific, optional transitive attribute\", \"source\": {\"defect\": [\"1739919\"], \"advisory\": \"JSA71542\", \"discovery\": \"USER\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Juniper Networks\", \"product\": \"Junos OS\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"unspecified\", \"lessThan\": \"15.1R1\", 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22.4R3\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"23.1\", \"lessThan\": \"23.1R1-S1, 23.1R2\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Juniper Networks\", \"product\": \"Junos OS Evolved\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"20.4R3-S8-EVO\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.1R1-EVO\", \"lessThan\": \"21.1*\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.2\", \"lessThan\": \"21.2R3-S6-EVO\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.3\", \"lessThan\": \"21.3R3-S5-EVO\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.4\", \"lessThan\": \"21.4R3-S4-EVO\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"22.1\", \"lessThan\": \"22.1R3-S4-EVO\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"22.2\", \"lessThan\": \"22.2R3-S2-EVO\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"22.3\", \"lessThan\": \"22.3R2-S2-EVO, 22.3R3-S1-EVO\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"22.4\", \"lessThan\": \"22.4R2-S1-EVO, 22.4R3-EVO\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"23.1\", \"lessThan\": \"23.1R1-S1-EVO, 23.1R2-EVO\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eJuniper SIRT is not aware of any malicious exploitation of this vulnerability.\u003c/p\u003e\", \"base64\": false}]}], \"solutions\": [{\"lang\": \"en\", \"value\": \"The following software releases have been updated to resolve this specific issue:\\n\\nJunos OS: 20.4R3-S8*, 21.2R3-S6*, 21.3R3-S5*, 21.4R3-S4, 22.1R3-S4*, 22.2R3-S2*, 22.3R2-S2*, 22.3R3-S1*, 22.4R2-S1*, 22.4R3*, 23.1R1-S1*, 23.1R2*, 23.2R1*, and all subsequent releases;\\n\\nJunos OS Evolved: 20.4R3-S8-EVO*, 21.2R3-S6-EVO*, 21.3R3-S5-EVO*, 21.4R3-S4-EVO, 22.1R3-S4-EVO*, 22.2R3-S2-EVO*, 22.3R2-S2-EVO*, 22.3R3-S1-EVO*, 22.4R2-S1-EVO*, 22.4R3-EVO*, 23.1R1-S1-EVO*, 23.1R2-EVO*, 23.2R1-EVO*, and all subsequent releases.\\n\\n*Pending Publication\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThe following software releases have been updated to resolve this specific issue:\u003c/p\u003e\u003cp\u003eJunos OS: 20.4R3-S8*, 21.2R3-S6*, 21.3R3-S5*, 21.4R3-S4, 22.1R3-S4*, 22.2R3-S2*, 22.3R2-S2*, 22.3R3-S1*, 22.4R2-S1*, 22.4R3*, 23.1R1-S1*, 23.1R2*, 23.2R1*, and all subsequent releases;\u003c/p\u003e\u003cp\u003eJunos OS Evolved: 20.4R3-S8-EVO*, 21.2R3-S6-EVO*, 21.3R3-S5-EVO*, 21.4R3-S4-EVO, 22.1R3-S4-EVO*, 22.2R3-S2-EVO*, 22.3R2-S2-EVO*, 22.3R3-S1-EVO*, 22.4R2-S1-EVO*, 22.4R3-EVO*, 23.1R1-S1-EVO*, 23.1R2-EVO*, 23.2R1-EVO*, and all subsequent releases.\u003c/p\u003e\u003cp\u003e*Pending Publication\u003c/p\u003e\", \"base64\": false}]}], \"datePublic\": \"2023-06-21T04:00:00.000Z\", \"references\": [{\"url\": \"https://supportportal.juniper.net/JSA71542\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/bgp-error-messages.html\", \"tags\": [\"product\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"The workaround is to configure BGP error tolerance by way of:\\n\\n  [ protocols bgp bgp-error-tolerance ... ]\\nwhich causes malformed BGP routes to be \u0027treated as withdrawal\u0027 instead of bringing down the BGP session. Additional details can be found at https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/bgp-error-messages.html\\n\\nJuniper considers configuring this option to be a Best Common Practice (BCP) as it not only prevents this issue from happening, but protects against similar issues as well.\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThe workaround is to configure BGP error tolerance by way of:\u003c/p\u003e\u003ccode\u003e  [ protocols bgp bgp-error-tolerance ... ]\u003c/code\u003e\u003cbr/\u003e\u003cp\u003ewhich causes malformed BGP routes to be \u0027treated as withdrawal\u0027 instead of bringing down the BGP session. Additional details can be found at https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/bgp-error-messages.html\u003c/p\u003e\u003cp\u003eJuniper considers configuring this option to be a Best Common Practice (BCP) as it not only prevents this issue from happening, but protects against similar issues as well.\u003c/p\u003e\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a BGP update message is received over an established BGP session, and that message contains a specific, optional transitive attribute, this session will be torn down with an update message error. This issue cannot propagate beyond an affected system as the processing error occurs as soon as the update is received. This issue is exploitable remotely as the respective attribute can propagate through unaffected systems and intermediate AS (if any). Continuous receipt of a BGP update containing this attribute will create a sustained Denial of Service (DoS) condition. Some customers have experienced these BGP session flaps which prompted Juniper SIRT to release this advisory out of cycle before fixed releases are widely available as there is an effective workaround.\\n\\nThis issue affects:\\nJuniper Networks Junos OS\\n15.1R1 and later versions prior to 20.4R3-S8;\\n21.1 version 21.1R1 and later versions prior to 21.2R3-S6;\\n21.3 versions prior to 21.3R3-S5;\\n21.4 versions prior to 21.4R3-S4;\\n22.1 versions prior to 22.1R3-S4;\\n22.2 versions prior to 22.2R3-S2;\\n22.3 versions prior to 22.3R2-S2, 22.3R3-S1;\\n22.4 versions prior to 22.4R2-S1, 22.4R3;\\n23.1 versions prior to 23.1R1-S1, 23.1R2.\\n\\nJuniper Networks Junos OS Evolved\\nAll versions prior to 20.4R3-S8-EVO;\\n21.1 version 21.1R1-EVO and later versions prior to 21.2R3-S6-EVO;\\n21.3 versions prior to 21.3R3-S5-EVO;\\n21.4 versions prior to 21.4R3-S4-EVO;\\n22.1 versions prior to 22.1R3-S4-EVO;\\n22.2 versions prior to 22.2R3-S2-EVO;\\n22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\\n22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO;\\n23.1 versions prior to 23.1R1-S1-EVO, 23.1R2-EVO.\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eAn Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a BGP update message is received over an established BGP session, and that message contains a specific, optional transitive attribute, this session will be torn down with an update message error. This issue cannot propagate beyond an affected system as the processing error occurs as soon as the update is received. This issue is exploitable remotely as the respective attribute can propagate through unaffected systems and intermediate AS (if any). Continuous receipt of a BGP update containing this attribute will create a sustained Denial of Service (DoS) condition. Some customers have experienced these BGP session flaps which prompted Juniper SIRT to release this advisory out of cycle before fixed releases are widely available as there is an effective workaround.\u003c/p\u003eThis issue affects:\u003cbr\u003eJuniper Networks Junos OS\u003cbr\u003e15.1R1 and later versions prior to 20.4R3-S8;\u003cbr\u003e21.1 version 21.1R1 and later versions prior to 21.2R3-S6;\u003cbr\u003e21.3 versions prior to 21.3R3-S5;\u003cbr\u003e21.4 versions prior to 21.4R3-S4;\u003cbr\u003e22.1 versions prior to 22.1R3-S4;\u003cbr\u003e22.2 versions prior to 22.2R3-S2;\u003cbr\u003e22.3 versions prior to 22.3R2-S2, 22.3R3-S1;\u003cbr\u003e22.4 versions prior to 22.4R2-S1, 22.4R3;\u003cbr\u003e23.1 versions prior to 23.1R1-S1, 23.1R2.\u003cbr\u003e\u003cbr\u003eJuniper Networks Junos OS Evolved\u003cbr\u003eAll versions prior to 20.4R3-S8-EVO;\u003cbr\u003e21.1 version 21.1R1-EVO and later versions prior to 21.2R3-S6-EVO;\u003cbr\u003e21.3 versions prior to 21.3R3-S5-EVO;\u003cbr\u003e21.4 versions prior to 21.4R3-S4-EVO;\u003cbr\u003e22.1 versions prior to 22.1R3-S4-EVO;\u003cbr\u003e22.2 versions prior to 22.2R3-S2-EVO;\u003cbr\u003e22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\u003cbr\u003e22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO;\u003cbr\u003e23.1 versions prior to 23.1R1-S1-EVO, 23.1R2-EVO.\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-20\", \"description\": \"CWE-20 Improper Input Validation\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"description\": \"Denial of Service (DoS)\"}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2023-07-17T15:59:01.049Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-0026\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-06T19:18:31.348Z\", \"dateReserved\": \"2022-12-27T00:00:00\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2023-06-21T00:00:00\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.