Vulnerability-Lookup

CNVD-2021-102387

Vulnerability from cnvd - Published: 2021-12-24

Title

Apache HTTP Server代码问题漏洞

Description

Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server中存在代码问题漏洞，该漏洞源于产品存在空指针引用错误。攻击者可通过该漏洞导致系统奔溃或服务端请求伪造。

Severity

中

Patch Name

Apache HTTP Server代码问题漏洞的补丁

Patch Description

Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server中存在代码问题漏洞，该漏洞源于产品存在空指针引用错误。攻击者可通过该漏洞导致系统奔溃或服务端请求伪造。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://httpd.apache.org/download.cgi#apache24

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-44224

Impacted products

Name
Apache HTTP Server >=2.4.7，<2.4.52

Show details on source website

JSON

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    "cve": {
      "cveNumber": "CVE-2021-44224"
    }
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  "submitTime": "2021-12-24",
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CVE-2021-44224 (GCVE-0-2021-44224)

Vulnerability from cvelistv5 – Published: 2021-12-20 11:20 – Updated: 2024-08-04 04:17

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

apache mitre root

References

19 references

URL	Tags
http://httpd.apache.org/security/vulnerabilities_…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/12/20/3	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2022/dsa-5035	vendor-advisoryx_refsource_DEBIAN
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021122…	x_refsource_CONFIRM
https://www.tenable.com/security/tns-2022-01	x_refsource_CONFIRM
https://www.tenable.com/security/tns-2022-03	x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://support.apple.com/kb/HT213257	x_refsource_CONFIRM
https://support.apple.com/kb/HT213256	x_refsource_CONFIRM
https://support.apple.com/kb/HT213255	x_refsource_CONFIRM
http://seclists.org/fulldisclosure/2022/May/33	mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2022/May/35	mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2022/May/38	mailing-listx_refsource_FULLDISC
https://security.gentoo.org/glsa/202208-20	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache HTTP Server	Affected: 2.4.7 , < Apache HTTP Server 2.4* (custom)

Credits

漂亮鼠 TengMA(@Te3t123)

Show details on NVD website

JSON

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            },
            {
              "name": "[oss-security] 20211220 CVE-2021-44224: Apache HTTP Server: Possible NULL dereference or SSRF in forward proxy configurations in Apache HTTP Server 2.4.51 and earlier",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/12/20/3"
            },
            {
              "name": "FEDORA-2021-29a536c2ae",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/"
            },
            {
              "name": "DSA-5035",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2022/dsa-5035"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujan2022.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20211224-0001/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20211224-0001/"
            },
            {
              "name": "https://www.tenable.com/security/tns-2022-01",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2022-01"
            },
            {
              "name": "https://www.tenable.com/security/tns-2022-03",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2022-03"
            },
            {
              "name": "FEDORA-2022-b4103753e9",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/"
            },
            {
              "name": "FEDORA-2022-21264ec6db",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/"
            },
            {
              "name": "FEDORA-2022-78e3211c55",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuapr2022.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
            },
            {
              "name": "https://support.apple.com/kb/HT213257",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT213257"
            },
            {
              "name": "https://support.apple.com/kb/HT213256",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT213256"
            },
            {
              "name": "https://support.apple.com/kb/HT213255",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT213255"
            },
            {
              "name": "20220516 APPLE-SA-2022-05-16-4 Security Update 2022-004 Catalina",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2022/May/33"
            },
            {
              "name": "20220516 APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2022/May/35"
            },
            {
              "name": "20220516 APPLE-SA-2022-05-16-2 macOS Monterey 12.4",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2022/May/38"
            },
            {
              "name": "GLSA-202208-20",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202208-20"
            }
          ]
        },
        "source": {
          "discovery": "UNKNOWN"
        },
        "timeline": [
          {
            "lang": "en",
            "time": "2021-11-18T00:00:00.000Z",
            "value": "Reported to security team"
          },
          {
            "lang": "en",
            "time": "2021-12-14T00:00:00.000Z",
            "value": "fixed by r1895955+r1896044 in 2.4.x"
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2021-44224",
    "datePublished": "2021-12-20T11:20:13.000Z",
    "dateReserved": "2021-11-25T00:00:00.000Z",
    "dateUpdated": "2024-08-04T04:17:24.919Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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.

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.

Action not permitted

CNVD-2021-102387

CVE-2021-44224 (GCVE-0-2021-44224)

Tags

Sightings

Nomenclature

Related by attack behaviour