Vulnerability-Lookup

CNVD-2021-70101

Vulnerability from cnvd - Published: 2021-09-11

Title

Apache Traffic Server环境问题漏洞（CNVD-2021-70101）

Description

Apache Traffic Server（ATS）是美国阿帕奇（Apache）基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic Server中存在环境问题漏洞，该漏洞源于未能对URL数据段做正确处理。攻击者可利用该漏洞影响目标服务的缓存。

Severity

中

Patch Name

Apache Traffic Server环境问题漏洞（CNVD-2021-70101）的补丁

Patch Description

Apache Traffic Server（ATS）是美国阿帕奇（Apache）基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic Server中存在环境问题漏洞，该漏洞源于未能对URL数据段做正确处理。攻击者可利用该漏洞影响目标服务的缓存。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://lists.apache.org/thread.html/ra1a41ff92a70d25bf576d7da2590575e8ff430393a3f4a0c34de4277%40%3Cusers.trafficserver.apache.org%3E

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-27577

Impacted products

Name
['Apache Apache Traffic Server >=8.0.0，<=8.1.1', 'Apache Apache Traffic Server >=9.0.0，<=9.0.1', 'Apache Traffic Server >=7.0.0，<=7.1.12']

Show details on source website

JSON

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-27577"
    }
  },
  "description": "Apache Traffic Server\uff08ATS\uff09\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u53ef\u6269\u5c55\u7684HTTP\u4ee3\u7406\u548c\u7f13\u5b58\u670d\u52a1\u5668\u3002\n\nApache Traffic Server\u4e2d\u5b58\u5728\u73af\u5883\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u5bf9URL\u6570\u636e\u6bb5\u505a\u6b63\u786e\u5904\u7406\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5f71\u54cd\u76ee\u6807\u670d\u52a1\u7684\u7f13\u5b58\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://lists.apache.org/thread.html/ra1a41ff92a70d25bf576d7da2590575e8ff430393a3f4a0c34de4277%40%3Cusers.trafficserver.apache.org%3E",
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  "number": "CNVD-2021-70101",
  "openTime": "2021-09-11",
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  "patchName": "Apache Traffic Server\u73af\u5883\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-70101\uff09\u7684\u8865\u4e01",
  "products": {
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      "Apache Apache Traffic Server \u003e=9.0.0\uff0c\u003c=9.0.1",
      "Apache Traffic Server \u003e=7.0.0\uff0c\u003c=7.1.12"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-27577",
  "serverity": "\u4e2d",
  "submitTime": "2021-06-30",
  "title": "Apache Traffic Server\u73af\u5883\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-70101\uff09"
}

CVE-2021-27577 (GCVE-0-2021-27577)

Vulnerability from cvelistv5 – Published: 2021-06-29 11:45 – Updated: 2024-08-03 21:26

Title

Incorrect handling of url fragment leads to cache poisoning

Summary

Incorrect handling of url fragment vulnerability of Apache Traffic Server allows an attacker to poison the cache. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.

Severity

No CVSS data available.

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Assigner

apache mitre root

References

2 references

URL	Tags
https://lists.apache.org/thread.html/ra1a41ff92a7…	x_refsource_MISC
https://www.debian.org/security/2021/dsa-4957	vendor-advisoryx_refsource_DEBIAN

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Traffic Server	Affected: Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1

Show details on NVD website

JSON

To clipboard

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          },
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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.

Detection rules are retrieved from Rulezet.

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.