Vulnerability-Lookup

GHSA-PGWQ-8WJV-XHHR

Vulnerability from github – Published: 2022-05-24 19:20 – Updated: 2022-05-24 19:20

Details

In NLnet Labs Routinator prior to 0.10.2, a validation run can be delayed significantly by an RRDP repository by not answering but slowly drip-feeding bytes to keep the connection alive. This can be used to effectively stall validation. While Routinator has a configurable time-out value for RRDP connections, this time-out was only applied to individual read or write operations rather than the complete request. Thus, if an RRDP repository sends a little bit of data before that time-out expired, it can continuously extend the time it takes for the request to finish. Since validation will only continue once the update of an RRDP repository has concluded, this delay will cause validation to stall, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-43173"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-755"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-11-09T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "In NLnet Labs Routinator prior to 0.10.2, a validation run can be delayed significantly by an RRDP repository by not answering but slowly drip-feeding bytes to keep the connection alive. This can be used to effectively stall validation. While Routinator has a configurable time-out value for RRDP connections, this time-out was only applied to individual read or write operations rather than the complete request. Thus, if an RRDP repository sends a little bit of data before that time-out expired, it can continuously extend the time it takes for the request to finish. Since validation will only continue once the update of an RRDP repository has concluded, this delay will cause validation to stall, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all.",
  "id": "GHSA-pgwq-8wjv-xhhr",
  "modified": "2022-05-24T19:20:05Z",
  "published": "2022-05-24T19:20:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43173"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-5033"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5041"
    },
    {
      "type": "WEB",
      "url": "https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-43172_CVE-2021-43173_CVE-2021-43174.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-43173 (GCVE-0-2021-43173)

Vulnerability from cvelistv5 – Published: 2021-11-09 16:41 – Updated: 2024-09-16 18:18

Title

Hanging RRDP request

Summary

Severity

No CVSS data available.

CWE

CWE-755 - Improper Handling of Exceptional Conditions

Assigner

NLnet Labs CNA

CNA scorecard B 82/100 over 61 records in the last 180 days details

References

3 references

URL	Tags
https://www.nlnetlabs.nl/downloads/routinator/CVE…	x_refsource_MISC
https://www.debian.org/security/2021/dsa-5033	vendor-advisoryx_refsource_DEBIAN
https://www.debian.org/security/2022/dsa-5041	vendor-advisoryx_refsource_DEBIAN

Impacted products

1 product

Vendor	Product	Version
NLnet Labs	Routinator	Affected: unspecified , ≤ 0.10.1 (custom)

Date Public

2021-11-09 00:00

Credits

We would like to thank Koen van Hove for the discovery.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:47:13.592Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-43172_CVE-2021-43173_CVE-2021-43174.txt"
          },
          {
            "name": "DSA-5033",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2021/dsa-5033"
          },
          {
            "name": "DSA-5041",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5041"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Routinator",
          "vendor": "NLnet Labs",
          "versions": [
            {
              "lessThanOrEqual": "0.10.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "We would like to thank Koen van Hove for the discovery."
        }
      ],
      "datePublic": "2021-11-09T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In NLnet Labs Routinator prior to 0.10.2, a validation run can be delayed significantly by an RRDP repository by not answering but slowly drip-feeding bytes to keep the connection alive. This can be used to effectively stall validation. While Routinator has a configurable time-out value for RRDP connections, this time-out was only applied to individual read or write operations rather than the complete request. Thus, if an RRDP repository sends a little bit of data before that time-out expired, it can continuously extend the time it takes for the request to finish. Since validation will only continue once the update of an RRDP repository has concluded, this delay will cause validation to stall, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-755",
              "description": "CWE-755: Improper Handling of Exceptional Conditions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-01-12T10:06:16.000Z",
        "orgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6",
        "shortName": "NLnet Labs"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-43172_CVE-2021-43173_CVE-2021-43174.txt"
        },
        {
          "name": "DSA-5033",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2021/dsa-5033"
        },
        {
          "name": "DSA-5041",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2022/dsa-5041"
        }
      ],
      "title": "Hanging RRDP request",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sep@nlnetlabs.nl",
          "DATE_PUBLIC": "2021-11-09T14:00:00.000Z",
          "ID": "CVE-2021-43173",
          "STATE": "PUBLIC",
          "TITLE": "Hanging RRDP request"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Routinator",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_value": "0.10.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "NLnet Labs"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "We would like to thank Koen van Hove for the discovery."
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In NLnet Labs Routinator prior to 0.10.2, a validation run can be delayed significantly by an RRDP repository by not answering but slowly drip-feeding bytes to keep the connection alive. This can be used to effectively stall validation. While Routinator has a configurable time-out value for RRDP connections, this time-out was only applied to individual read or write operations rather than the complete request. Thus, if an RRDP repository sends a little bit of data before that time-out expired, it can continuously extend the time it takes for the request to finish. Since validation will only continue once the update of an RRDP repository has concluded, this delay will cause validation to stall, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-755: Improper Handling of Exceptional Conditions"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-43172_CVE-2021-43173_CVE-2021-43174.txt",
              "refsource": "MISC",
              "url": "https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-43172_CVE-2021-43173_CVE-2021-43174.txt"
            },
            {
              "name": "DSA-5033",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-5033"
            },
            {
              "name": "DSA-5041",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2022/dsa-5041"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6",
    "assignerShortName": "NLnet Labs",
    "cveId": "CVE-2021-43173",
    "datePublished": "2021-11-09T16:41:40.253Z",
    "dateReserved": "2021-11-01T00:00:00.000Z",
    "dateUpdated": "2024-09-16T18:18:51.653Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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