CVE-2021-0233 (GCVE-0-2021-0233)

Vulnerability from cvelistv5 – Published: 2021-04-22 19:37 – Updated: 2024-09-16 18:14
VLAI?
Summary
A vulnerability in Juniper Networks Junos OS ACX500 Series, ACX4000 Series, may allow an attacker to cause a Denial of Service (DoS) by sending a high rate of specific packets to the device, resulting in a Forwarding Engine Board (FFEB) crash. Continued receipt of these packets will sustain the Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on ACX500 Series, ACX4000 Series: 17.4 versions prior to 17.4R3-S2.
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-794 - Incomplete Filtering of Multiple Instances of Special Elements
  • CWE-400 - Uncontrolled Resource Consumption
  • Denial of Service (DoS)
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 17.4 , < 17.4R3-S2 (custom)
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17.4R3-S2\"}],\"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:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"},{\"lang\":\"en\",\"value\":\"CWE-794\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"A00CA6FB-8F28-4171-B510-8DBA351E80C0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"988D317A-0646-491F-9B97-853E8E208276\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"605F1AD7-5B09-44F0-9017-15AB3EEE559C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"CEDDCD30-2255-4FA9-B3E2-9E88AB6F8D80\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r1-s3:*:*:*:*:*:*\",\"matchCriteriaId\":\"DF3F9F86-166F-45E4-92B7-3DD3B06199F3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r1-s4:*:*:*:*:*:*\",\"matchCriteriaId\":\"4E4EB6B0-8DB2-4199-96E4-30195D49F756\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r1-s5:*:*:*:*:*:*\",\"matchCriteriaId\":\"204FC7B5-9CF2-4AC2-9B8D-DA48CAEA6496\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r1-s6:*:*:*:*:*:*\",\"matchCriteriaId\":\"9D8A8E33-473A-4A40-A7B7-47086BB9012A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r1-s7:*:*:*:*:*:*\",\"matchCriteriaId\":\"F0F65DCA-34B9-4CE8-91C9-426AAAEB4097\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2:*:*:*:*:*:*\",\"matchCriteriaId\":\"0E0CE79A-157D-47DE-BE65-936BC12470EB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"05060C06-18C1-40E8-AE01-385B036CC9AA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s10:*:*:*:*:*:*\",\"matchCriteriaId\":\"341417EE-71C2-465C-96CA-65B2B5B63FF0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s11:*:*:*:*:*:*\",\"matchCriteriaId\":\"A701A73D-A795-47DD-8EB5-55D1CDF67A49\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"0C752783-4843-407B-AF33-0E1D36FCAAF8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s3:*:*:*:*:*:*\",\"matchCriteriaId\":\"006EE425-A146-4E10-B050-7E754BB8402A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s4:*:*:*:*:*:*\",\"matchCriteriaId\":\"2B482BCC-1F0C-47AA-B63B-1B39CEF7B2C0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s5:*:*:*:*:*:*\",\"matchCriteriaId\":\"A636F9F2-2DA7-4A27-AD80-FD1B34DFCA94\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s6:*:*:*:*:*:*\",\"matchCriteriaId\":\"4EC7D216-D8F3-4ABD-97C9-4C9FB6DF64FF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s7:*:*:*:*:*:*\",\"matchCriteriaId\":\"5E327643-D8D8-4EFA-9F38-BA862A919501\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s8:*:*:*:*:*:*\",\"matchCriteriaId\":\"1BC6CE1C-9DD8-429E-BDC2-251D8C8674E3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r2-s9:*:*:*:*:*:*\",\"matchCriteriaId\":\"63B00B4F-3E65-4CB2-807D-43908B570AE6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r3:*:*:*:*:*:*\",\"matchCriteriaId\":\"8732E25A-9073-4C7B-9E89-C02368728EB4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:17.4:r3-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"09255363-BF79-4FC3-AADD-5FAD0902174F\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:acx4000:-:*: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Advisory\"]},{\"url\":\"https://kb.juniper.net/JSA11128\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


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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.