CVE-2021-3031 (GCVE-0-2021-3031)

Vulnerability from cvelistv5 – Published: 2021-01-13 18:10 – Updated: 2024-09-16 16:48
VLAI?
Summary
Padding bytes in Ethernet packets on PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200 Series, and PA-7000 Series firewalls are not cleared before the data frame is created. This leaks a small amount of random information from the firewall memory into the Ethernet packets. An attacker on the same Ethernet subnet as the PAN-OS firewall is able to collect potentially sensitive information from these packets. This issue is also known as Etherleak and is detected by security scanners as CVE-2003-0001. This issue impacts: PAN-OS 8.1 version earlier than PAN-OS 8.1.18; PAN-OS 9.0 versions earlier than PAN-OS 9.0.12; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5.
Severity ?
4.3 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Palo Alto Networks PAN-OS Affected: 8.1 , < 8.1.18 (custom)
Affected: 9.0 , < 9.0.12 (custom)
Affected: 9.1 , < 9.1.5 (custom)
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    Palo Alto Networks PAN-OS Unaffected: 10.0.*
Unaffected: 8.1.18 , < 8.1* (custom)
Unaffected: 9.0.12 , < 9.0* (custom)
Unaffected: 9.1.5 , < 9.1* (custom)
Create a notification for this product.
Credits
This issue was found by a customer of Palo Alto Networks during a security review.
Show details on NVD website
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-3031\",\"sourceIdentifier\":\"psirt@paloaltonetworks.com\",\"published\":\"2021-01-13T18:15:14.603\",\"lastModified\":\"2024-11-21T06:20:47.707\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Padding bytes in Ethernet packets on PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200 Series, and PA-7000 Series firewalls are not cleared before the data frame is created. This leaks a small amount of random information from the firewall memory into the Ethernet packets. An attacker on the same Ethernet subnet as the PAN-OS firewall is able to collect potentially sensitive information from these packets. This issue is also known as Etherleak and is detected by security scanners as CVE-2003-0001. This issue impacts: PAN-OS 8.1 version earlier than PAN-OS 8.1.18; PAN-OS 9.0 versions earlier than PAN-OS 9.0.12; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5.\"},{\"lang\":\"es\",\"value\":\"Los bytes de relleno en los paquetes Ethernet en los firewalls PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200 Series y PA-7000 Series, no son borrados antes de que se cree la trama de datos.\u0026#xa0;Esto filtra una peque\u00f1a cantidad de informaci\u00f3n aleatoria de la memoria del firewall para los paquetes Ethernet.\u0026#xa0;Un atacante en la misma subred Ethernet que el firewall PAN-OS puede recopilar informaci\u00f3n potencialmente confidencial de estos paquetes.\u0026#xa0;Este problema tambi\u00e9n se conoce como Etherleak y los esc\u00e1neres de seguridad lo detectan como CVE-2003-0001.\u0026#xa0;Este problema afecta: PAN-OS 8.1 versiones anteriores a PAN-OS 8.1.18;\u0026#xa0;PAN-OS 9.0 versiones anteriores a PAN-OS 9.0.12;\u0026#xa0;PAN-OS 9.1 versiones anteriores a PAN-OS 9.1.5.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@paloaltonetworks.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:A/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":3.3,\"accessVector\":\"ADJACENT_NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":6.5,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"psirt@paloaltonetworks.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-212\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.1.0\",\"versionEndExcluding\":\"8.1.18\",\"matchCriteriaId\":\"33293775-DC4C-41E0-89CD-B15F4B73D130\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.0.0\",\"versionEndExcluding\":\"9.0.12\",\"matchCriteriaId\":\"9DABB61F-8BFA-4476-9A59-E0DC68873022\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.1.0\",\"versionEndExcluding\":\"9.1.5\",\"matchCriteriaId\":\"872E6056-5BE6-4FE8-BE33-F98CF0DBC67C\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-200:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C4A00CA4-326B-45A1-A4C1-46DDA28819AA\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-2020:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"17D4C591-22F5-44A8-8490-7B4AD0682414\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-2050:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"ADF87CC5-485D-4F39-953C-A727CF0A5305\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-220:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E75FBB9F-24D9-413A-ABC8-6ACFD99F4097\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-3020:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"43FCBC3C-C1EC-43D3-80CE-6C8D0C465FD3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-3050:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2480738F-8A68-4B15-8893-0BD9AA4660B8\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-3060:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F3DA3033-6239-47D4-9CF9-11AE51E0308E\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-3220:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A1D39EA7-7F92-4CF0-AF52-D6DA4A35683A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-3250:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B2632686-9B16-4CDB-8874-55CDB86CA90F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-3260:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DED6DB33-02C3-421E-B289-0E735293F100\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-500:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6550421C-0EA0-4C04-93C9-F862B1CDED67\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-5200:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0196D5B4-9C82-4DC6-9A3D-3397BE92D153\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:paloaltonetworks:pa-800:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5BC340BF-F1B1-4EE8-91C9-DF650B26555F\"}]}]}],\"references\":[{\"url\":\"https://security.paloaltonetworks.com/CVE-2021-3031\",\"source\":\"psirt@paloaltonetworks.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://security.paloaltonetworks.com/CVE-2021-3031\",\"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.