Vulnerability-Lookup

CNVD-2020-44873

Vulnerability from cnvd - Published: 2020-08-07

Title

Encode OSS Uvicorn注入漏洞

Description

Encode OSS Uvicorn是英国Encode OSS公司的一款基于uvloop和httptools构建的ASGI（Web服务器网关接口）服务器。 Encode OSS Uvicorn 0.11.7之前版本中存在注入漏洞，该漏洞源于程序未能转义HTTP标头中的CRLF序列，攻击者可利用该漏洞向HTTP相应中添加任意标头或使其返回任意相应主体。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.uvicorn.org/

Reference

https://snyk.io/vuln/SNYK-PYTHON-UVICORN-570471

Impacted products

Name
Encode OSS Uvicorn <0.11.7

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7695",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-7695"
    }
  },
  "description": "Encode OSS Uvicorn\u662f\u82f1\u56fdEncode OSS\u516c\u53f8\u7684\u4e00\u6b3e\u57fa\u4e8euvloop\u548chttptools\u6784\u5efa\u7684ASGI\uff08Web\u670d\u52a1\u5668\u7f51\u5173\u63a5\u53e3\uff09\u670d\u52a1\u5668\u3002\n\nEncode OSS Uvicorn 0.11.7\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u8f6c\u4e49HTTP\u6807\u5934\u4e2d\u7684CRLF\u5e8f\u5217\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5411HTTP\u76f8\u5e94\u4e2d\u6dfb\u52a0\u4efb\u610f\u6807\u5934\u6216\u4f7f\u5176\u8fd4\u56de\u4efb\u610f\u76f8\u5e94\u4e3b\u4f53\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.uvicorn.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-44873",
  "openTime": "2020-08-07",
  "products": {
    "product": "Encode OSS Uvicorn \u003c0.11.7"
  },
  "referenceLink": "https://snyk.io/vuln/SNYK-PYTHON-UVICORN-570471",
  "serverity": "\u4e2d",
  "submitTime": "2020-07-28",
  "title": "Encode OSS Uvicorn\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2020-7695 (GCVE-0-2020-7695)

Vulnerability from cvelistv5 – Published: 2020-07-27 11:25 – Updated: 2024-09-17 00:06

Title

HTTP Response Splitting

Summary

Uvicorn before 0.11.7 is vulnerable to HTTP response splitting. CRLF sequences are not escaped in the value of HTTP headers. Attackers can exploit this to add arbitrary headers to HTTP responses, or even return an arbitrary response body, whenever crafted input is used to construct HTTP headers.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:U/RC:C

CWE

HTTP Response Splitting

Assigner

snyk mitre root Scorecard

References

2 references

URL	Tags
https://github.com/encode/uvicorn	x_refsource_MISC
https://snyk.io/vuln/SNYK-PYTHON-UVICORN-570471	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	uvicorn	Affected: 0 , < unspecified (custom)

Date Public

2020-07-27 00:00

Credits

Everardo Padilla Saca

Show details on NVD website

JSON

To clipboard

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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.

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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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CNVD-2020-44873

CVE-2020-7695 (GCVE-0-2020-7695)

Tags

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Nomenclature

Related by attack behaviour