cnvd - cnvd-2020-52894

CNVD-2020-52894

Vulnerability from cnvd - Published: 2020-09-19

Title

Yubico libykpiv信息泄露漏洞

Description

Yubico libykpiv是瑞典Yubico公司的一款YubiKey智能卡微型驱动程序中的秘钥处理库。 Yubico libykpiv 2.1.0之前版本中的lib/util.c文件存在安全漏洞。该漏洞源于网络系统或产品在运行过程中存在配置等错误。攻击者可利用该漏洞获取信息。

Severity

低

Patch Name

Yubico libykpiv信息泄露漏洞的补丁

Patch Description

Yubico libykpiv是瑞典Yubico公司的一款YubiKey智能卡微型驱动程序中的秘钥处理库。 Yubico libykpiv 2.1.0之前版本中的lib/util.c文件存在安全漏洞。该漏洞源于网络系统或产品在运行过程中存在配置等错误。攻击者可利用该漏洞获取信息。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

厂商已发布了漏洞修复程序，请及时关注更新： https://www.yubico.com/support/security-advisories/ysa-2020-02/

Reference

https://www.yubico.com/products/services-software/download/smart-card-drivers-tools/

Impacted products

Name
Yubico Yubico libykpiv <2.1.0

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-13131",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-13131"
    }
  },
  "description": "Yubico libykpiv\u662f\u745e\u5178Yubico\u516c\u53f8\u7684\u4e00\u6b3eYubiKey\u667a\u80fd\u5361\u5fae\u578b\u9a71\u52a8\u7a0b\u5e8f\u4e2d\u7684\u79d8\u94a5\u5904\u7406\u5e93\u3002\n\nYubico libykpiv 2.1.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684lib/util.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u5b58\u5728\u914d\u7f6e\u7b49\u9519\u8bef\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\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://www.yubico.com/support/security-advisories/ysa-2020-02/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-52894",
  "openTime": "2020-09-19",
  "patchDescription": "Yubico libykpiv\u662f\u745e\u5178Yubico\u516c\u53f8\u7684\u4e00\u6b3eYubiKey\u667a\u80fd\u5361\u5fae\u578b\u9a71\u52a8\u7a0b\u5e8f\u4e2d\u7684\u79d8\u94a5\u5904\u7406\u5e93\u3002\r\n\r\nYubico libykpiv 2.1.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684lib/util.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u5b58\u5728\u914d\u7f6e\u7b49\u9519\u8bef\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\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": "Yubico libykpiv\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Yubico Yubico libykpiv \u003c2.1.0"
  },
  "referenceLink": "https://www.yubico.com/products/services-software/download/smart-card-drivers-tools/",
  "serverity": "\u4f4e",
  "submitTime": "2020-07-12",
  "title": "Yubico libykpiv\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2020-13131 (GCVE-0-2020-13131)

Vulnerability from cvelistv5 – Published: 2020-07-09 17:50 – Updated: 2024-08-04 12:11

Summary

An issue was discovered in Yubico libykpiv before 2.1.0. lib/util.c in this library (which is included in yubico-piv-tool) does not properly check embedded length fields during device communication. A malicious PIV token can misreport the returned length fields during RSA key generation. This will cause stack memory to be copied into heap allocated memory that gets returned to the caller. The leaked memory could include PINs, passwords, key material, and other sensitive information depending on the integration. During further processing by the caller, this information could leak across trust boundaries. Note that RSA key generation is triggered by the host and cannot directly be triggered by the token.

Severity ?

4.3 (Medium)


                        
                          CVSS:3.0/AC:L/AV:P/A:N/C:H/I:N/PR:N/S:U/UI:R

CWE

Assigner

mitre

References

URL

Tags

	https://blog.inhq.net/posts/yubico-libykpiv-vuln/	x_refsource_MISC
	https://www.yubico.com/products/services-software…	x_refsource_CONFIRM

Show details on NVD website

JSON

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        }
      ],
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            "confidentialityImpact": "HIGH",
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Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2020-52894

CVE-2020-13131 (GCVE-0-2020-13131)

Tags

Sightings

Nomenclature