CVE-2021-44224 (GCVE-0-2021-44224)
Vulnerability from cvelistv5 – Published: 2021-12-20 11:20 – Updated: 2024-08-04 04:17
VLAI?
Title
Possible NULL dereference or SSRF in forward proxy configurations in Apache HTTP Server 2.4.51 and earlier
Summary
A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).
Severity ?
No CVSS data available.
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
19 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.7 , < Apache HTTP Server 2.4*
(custom)
|
Credits
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"descriptions": "[{\"lang\": \"en\", \"value\": \"A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).\"}, {\"lang\": \"es\", \"value\": \"Un URI dise\\u00f1ado que es enviado a httpd configurado como proxy directo (ProxyRequests on) puede causar un fallo (desreferencia de puntero NULL) o, en el caso de configuraciones que mezclan declaraciones de proxy directo e inverso, puede permitir que las peticiones se dirijan a un endpoint de socket de dominio Unix declarado (Server Side Request Forgery). Este problema afecta a Apache HTTP Server versiones 2.4.7 hasta 2.4.51 (incluy\\u00e9ndola)\"}]",
"id": "CVE-2021-44224",
"lastModified": "2024-11-21T06:30:37.133",
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"published": "2021-12-20T12:15:07.393",
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"sourceIdentifier": "security@apache.org",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"security@apache.org\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-476\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-476\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-44224\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2021-12-20T12:15:07.393\",\"lastModified\":\"2024-11-21T06:30:37.133\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).\"},{\"lang\":\"es\",\"value\":\"Un URI dise\u00f1ado que es enviado a httpd configurado como proxy directo (ProxyRequests on) puede causar un fallo (desreferencia de puntero NULL) o, en el caso de configuraciones que mezclan declaraciones de proxy directo e inverso, puede permitir que las peticiones se dirijan a un endpoint de socket de dominio Unix declarado (Server Side Request Forgery). Este problema afecta a Apache HTTP Server versiones 2.4.7 hasta 2.4.51 (incluy\u00e9ndola)\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:P/A:P\",\"baseScore\":6.4,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":4.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.4.7\",\"versionEndExcluding\":\"2.4.52\",\"matchCriteriaId\":\"F280AFE0-EB05-4ABF-85A7-9518AD485C49\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A930E247-0B43-43CB-98FF-6CE7B8189835\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"80E516C0-98A4-4ADE-B69F-66A772E2BAAA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.14.0\",\"versionEndExcluding\":\"5.20.0\",\"matchCriteriaId\":\"3304C5DC-0353-4AC8-884E-2154C9224BE9\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16.0\",\"versionEndExcluding\":\"202201.1\",\"matchCriteriaId\":\"161BA9E6-265F-4245-8053-5734333322E5\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_element_manager:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"9.0\",\"matchCriteriaId\":\"02712DD6-D944-4452-8015-000B9851D257\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_operations_monitor:4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E3517A27-E6EE-497C-9996-F78171BBE90F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CBE1A019-7BB6-4226-8AC4-9D6927ADAEFA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B98BAEB2-A540-4E8A-A946-C4331B913AFD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_operations_monitor:5.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8FBE260-E306-4215-80C0-D2D27CA43E0F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_session_report_manager:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"9.0\",\"matchCriteriaId\":\"274BCA96-2E6A-4B77-B69E-E2093A668D28\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"9.0\",\"matchCriteriaId\":\"8D4B738B-08CF-44F6-A939-39F5BEAF03B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:http_server:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E290BD43-5AB2-4641-B4AC-BC99FFBF7833\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DFC79B17-E9D2-44D5-93ED-2F959E7A3D43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AD04BEE5-E9A8-4584-A68C-0195CE9C402C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*: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Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpujan2022.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2022-01\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2022-03\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
}
}
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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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