CVE-2024-25581 (GCVE-0-2024-25581)
Vulnerability from cvelistv5 – Published: 2024-05-13 11:49 – Updated: 2025-02-13 17:40
VLAI
EPSS
VEX
Title
Transfer requests received over DoH can lead to a denial of service in DNSdist
Summary
When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-13 15:37 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
Impacted products
5 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| PowerDNS | DNSdist |
Affected:
1.9.0
Affected: 1.9.1 Affected: 1.9.2 Affected: 1.9.3 |
guessed | |
| powerdns | dnsdist |
Affected:
1.9.0
cpe:2.3:a:powerdns:dnsdist:1.9.0:*:*:*:*:*:*:* |
||
| powerdns | dnsdist |
Affected:
1.9.1
cpe:2.3:a:powerdns:dnsdist:1.9.1:*:*:*:*:*:*:* |
||
| powerdns | dnsdist |
Affected:
1.9.2
cpe:2.3:a:powerdns:dnsdist:1.9.2:*:*:*:*:*:*:* |
||
| powerdns | dnsdist |
Affected:
1.9.3
cpe:2.3:a:powerdns:dnsdist:1.9.3:*:*:*:*:*:*:* |
Date Public
2024-05-13 10:00
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"value": "\u003cp\u003eWhen incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.\u003c/p\u003e"
}
],
"value": "When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default."
}
],
"impacts": [
{
"capecId": "CAPEC-212",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-212 Functionality Misuse"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper Input Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-06-10T17:12:42.212Z",
"orgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
"shortName": "OX"
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"references": [
{
"url": "https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.html"
},
{
"url": "http://www.openwall.com/lists/oss-security/2024/05/13/1"
}
],
"source": {
"advisory": "PowerDNS Security Advisory 2024-03",
"discovery": "EXTERNAL"
},
"title": "Transfer requests received over DoH can lead to a denial of service in DNSdist",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
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"value": "\u003cp\u003eOption 1: refuse incoming XFR requests via a DNSdist rule: addAction(OrRule({QTypeRule(DNSQType.AXFR), QTypeRule(DNSQType.IXFR)}), RCodeAction(DNSRCode.REFUSED)). Option 2: switch to the legacy h2o provider by setting library=\u0027h2o\u0027 in the addDOHLocal directive\u003c/p\u003e"
}
],
"value": "Option 1: refuse incoming XFR requests via a DNSdist rule: addAction(OrRule({QTypeRule(DNSQType.AXFR), QTypeRule(DNSQType.IXFR)}), RCodeAction(DNSRCode.REFUSED)). Option 2: switch to the legacy h2o provider by setting library=\u0027h2o\u0027 in the addDOHLocal directive"
}
],
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},
"cveMetadata": {
"assignerOrgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
"assignerShortName": "OX",
"cveId": "CVE-2024-25581",
"datePublished": "2024-05-13T11:49:24.500Z",
"dateReserved": "2024-02-08T08:15:37.204Z",
"dateUpdated": "2025-02-13T17:40:49.395Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
| Author | Source | Type | Date | Other |
|---|
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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