CVE-2020-1645 (GCVE-0-2020-1645)

Vulnerability from cvelistv5 – Published: 2020-07-17 18:40 – Updated: 2024-09-16 20:16
VLAI
Title
Junos OS: MX Series: Services card might restart when DNS filtering is enabled
Summary
When DNS filtering is enabled on Juniper Networks Junos MX Series with one of the following cards MS-PIC, MS-MIC or MS-MPC, an incoming stream of packets processed by the Multiservices PIC Management Daemon (mspmand) process, responsible for managing "URL Filtering service", may crash, causing the Services PIC to restart. While the Services PIC is restarting, all PIC services including DNS filtering service (DNS sink holing) will be bypassed until the Services PIC completes its boot process. If the issue occurs, system core-dumps output will show a crash of mspmand process: root@device> show system core-dumps -rw-rw---- 1 nobody wheel 575685123 <Date> /var/tmp/pics/mspmand.core.<*>.gz This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 18.3 versions prior to 18.3R2-S4, 18.3R3-S1; 18.4 versions prior to 18.4R2-S5, 18.4R3; 19.1 versions prior to 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S3, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2. This issue does not affect Juniper Networks Junos OS releases prior to 17.3R2.
Severity
8.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CWE
  • CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)
Assigner
juniper CNA under the mitre root
CNA scorecard B 84/100 over 193 records in the last 180 days details
References
URL Tags
https://kb.juniper.net/JSA11028 x_refsource_CONFIRM
Impacted products
Vendor Product Version CPE status
Juniper Networks Junos OS Unaffected: unspecified , < 17.3R2 (custom)
Unaffected: 17.4
Unaffected: 18.1
Unaffected: 18.2
Affected: 17.3 , < 17.3R3-S8 (custom)
Affected: 18.3 , < 18.3R2-S4, 18.3R3-S1 (custom)
Affected: 18.4 , < 18.4R2-S5, 18.4R3 (custom)
Affected: 19.1 , < 19.1R2-S2, 19.1R3 (custom)
Affected: 19.2 , < 19.2R1-S5, 19.2R2 (custom)
Affected: 19.3 , < 19.3R2-S3, 19.3R3 (custom)
Affected: 19.4 , < 19.4R1-S3, 19.4R2 (custom)
guessed Create a notification for this product.
Date Public
2020-07-08 00:00
Show details on NVD website
To clipboard 

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                "negate": false,
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "When DNS filtering is enabled on Juniper Networks Junos MX Series with one of the following cards MS-PIC, MS-MIC or MS-MPC, an incoming stream of packets processed by the Multiservices PIC Management Daemon (mspmand) process, responsible for managing \"URL Filtering service\", may crash, causing the Services PIC to restart. While the Services PIC is restarting, all PIC services including DNS filtering service (DNS sink holing) will be bypassed until the Services PIC completes its boot process. If the issue occurs, system core-dumps output will show a crash of mspmand process: root@device\u003e show system core-dumps -rw-rw---- 1 nobody wheel 575685123 \u003cDate\u003e /var/tmp/pics/mspmand.core.\u003c*\u003e.gz This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 18.3 versions prior to 18.3R2-S4, 18.3R3-S1; 18.4 versions prior to 18.4R2-S5, 18.4R3; 19.1 versions prior to 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S3, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2. This issue does not affect Juniper Networks Junos OS releases prior to 17.3R2."
          },
          {
            "lang": "es",
            "value": "Cuando el filtrado de DNS est\u00e1 habilitado en Juniper Networks Junos MX Series con una de las siguientes tarjetas MS-PIC, MS-MIC o MS-MPC, un flujo entrante de paquetes procesados ??por el proceso Multiservices PIC Management Daemon (mspmand), responsable de administrar \"URL Filtering service\", puede bloquearse y causar que se reinicie el PIC de Servicios. Mientras se reinicia el PIC de Servicios, todos los servicios de PIC, incluyendo el servicio de filtrado de DNS (DNS sink holing) ser\u00e1n omitidos hasta que el PIC de Servicios complete su proceso de arranque. Si se produce el problema, la salida core-dumps del sistema mostrar\u00e1 un bloqueo del proceso mspmand: root@device) show system core-dumps -rw-rw---- 1 nobody wheel 575685123 (Date) /var/tmp/pics/mspmand.core.(*).gz. Este problema afecta a Juniper Networks Junos OS: versiones 17.3 anteriores a 17.3R3-S8; versiones 18.3 anteriores a 18.3R2-S4, 18.3R3-S1; versiones 18.4 anteriores a 18.4R2-S5, 18.4R3; versiones 19.1 anteriores a 19.1R2-S2, 19.1R3; versiones 19.2 anteriores a 19.2R1-S5, 19.2R2; versiones 19.3 anteriores a 19.3R2-S3, 19.3R3; versiones 19.4 anteriores a 19.4R1-S3, 19.4R2. Este problema no afecta a Juniper Networks Junos OS versiones anteriores a 17.3R2"
          }
        ],
        "id": "CVE-2020-1645",
        "lastModified": "2024-11-21T05:11:04.250",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 6.8,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 6.4,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 8.3,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.7,
              "source": "sirt@juniper.net",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 8.3,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
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              },
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              "source": "nvd@nist.gov",
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          ]
        },
        "published": "2020-07-17T19:15:12.970",
        "references": [
          {
            "source": "sirt@juniper.net",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://kb.juniper.net/JSA11028"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://kb.juniper.net/JSA11028"
          }
        ],
        "sourceIdentifier": "sirt@juniper.net",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-362"
              }
            ],
            "source": "sirt@juniper.net",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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