cnvd - cnvd-2020-49929

cnvd-2020-49929

Vulnerability from cnvd

Title: wolfSSL信息泄露漏洞（CNVD-2020-49929）

Description:

wolfSSL（前称CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。

wolfSSL 4.5.0之前版本存在信息泄露漏洞。该漏洞与受影响版本TLS 1.3客户端状态机的错误实现有关。SanityCheckTls13MsgReceived()中以WAIT_CERT_CR状态错误处理了TLS 1.3服务器数据。攻击者可以利用该漏洞模拟任何TLS 1.3服务器，并使用wolfSSL库和这些TLS服务器在客户端之间读取或修改潜在的敏感信息。

Severity: 中

Patch Name: wolfSSL信息泄露漏洞（CNVD-2020-49929）的补丁

Patch Description:

wolfSSL（前称CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://nvd.nist.gov/vuln/detail/CVE-2020-24613

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-24613

Impacted products

Name
wolfSSL wolfSSL（前称CyaSSL） <4.5.0

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-24613",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-24613"
    }
  },
  "description": "wolfSSL\uff08\u524d\u79f0CyaSSL\uff09\u662f\u7f8e\u56fdwolfSSL\u516c\u53f8\u7684\u4e00\u4e2a\u9488\u5bf9\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u7684\u5c0f\u7684\u3001\u53ef\u79fb\u690d\u7684\u5d4c\u5165\u5f0fSSL\u7f16\u7a0b\u5e93\u3002\n\nwolfSSL 4.5.0\u4e4b\u524d\u7248\u672c\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4e0e\u53d7\u5f71\u54cd\u7248\u672cTLS 1.3\u5ba2\u6237\u7aef\u72b6\u6001\u673a\u7684\u9519\u8bef\u5b9e\u73b0\u6709\u5173\u3002SanityCheckTls13MsgReceived()\u4e2d\u4ee5WAIT_CERT_CR\u72b6\u6001\u9519\u8bef\u5904\u7406\u4e86TLS 1.3\u670d\u52a1\u5668\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u6a21\u62df\u4efb\u4f55TLS 1.3\u670d\u52a1\u5668\uff0c\u5e76\u4f7f\u7528wolfSSL\u5e93\u548c\u8fd9\u4e9bTLS\u670d\u52a1\u5668\u5728\u5ba2\u6237\u7aef\u4e4b\u95f4\u8bfb\u53d6\u6216\u4fee\u6539\u6f5c\u5728\u7684\u654f\u611f\u4fe1\u606f\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-24613",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-49929",
  "openTime": "2020-09-02",
  "patchDescription": "wolfSSL\uff08\u524d\u79f0CyaSSL\uff09\u662f\u7f8e\u56fdwolfSSL\u516c\u53f8\u7684\u4e00\u4e2a\u9488\u5bf9\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u7684\u5c0f\u7684\u3001\u53ef\u79fb\u690d\u7684\u5d4c\u5165\u5f0fSSL\u7f16\u7a0b\u5e93\u3002\r\n\r\nwolfSSL 4.5.0\u4e4b\u524d\u7248\u672c\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4e0e\u53d7\u5f71\u54cd\u7248\u672cTLS 1.3\u5ba2\u6237\u7aef\u72b6\u6001\u673a\u7684\u9519\u8bef\u5b9e\u73b0\u6709\u5173\u3002SanityCheckTls13MsgReceived()\u4e2d\u4ee5WAIT_CERT_CR\u72b6\u6001\u9519\u8bef\u5904\u7406\u4e86TLS 1.3\u670d\u52a1\u5668\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u6a21\u62df\u4efb\u4f55TLS 1.3\u670d\u52a1\u5668\uff0c\u5e76\u4f7f\u7528wolfSSL\u5e93\u548c\u8fd9\u4e9bTLS\u670d\u52a1\u5668\u5728\u5ba2\u6237\u7aef\u4e4b\u95f4\u8bfb\u53d6\u6216\u4fee\u6539\u6f5c\u5728\u7684\u654f\u611f\u4fe1\u606f\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "wolfSSL\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2020-49929\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "wolfSSL wolfSSL\uff08\u524d\u79f0CyaSSL\uff09 \u003c4.5.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-24613",
  "serverity": "\u4e2d",
  "submitTime": "2020-08-28",
  "title": "wolfSSL\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2020-49929\uff09"
}

CVE-2020-24613 (GCVE-0-2020-24613)

Vulnerability from cvelistv5

Published

2020-08-24 21:06

Modified

2024-08-04 15:19

Severity ?

CWE

Summary

wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c. This is an incorrect implementation of the TLS 1.3 client state machine. This allows attackers in a privileged network position to completely impersonate any TLS 1.3 servers, and read or modify potentially sensitive information between clients using the wolfSSL library and these TLS servers.

References

▼	URL	Tags
	https://research.nccgroup.com/2020/08/24/technical-advisory-wolfssl-tls-1-3-client-man-in-the-middle-attack/	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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