cnvd - cnvd-2020-20393

cnvd-2020-20393

Vulnerability from cnvd

Title: PySAML2 XML签名包装漏洞

Description:

PySAML2是SAML2的纯Python实现。

PySAML2 5.0.0之前版本存在XML签名包装漏洞。该漏洞源于PySAML2不检查SAML文档中的签名是否已封装。攻击者可利用该漏洞影响已签名断言的验证。

Severity: 中

Patch Name: PySAML2 XML签名包装漏洞的补丁

Patch Description:

PySAML2是SAML2的纯Python实现。

PySAML2 5.0.0之前版本存在XML签名包装漏洞。该漏洞源于PySAML2不检查SAML文档中的签名是否已封装。攻击者可利用该漏洞影响已签名断言的验证。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://github.com/IdentityPython/pysaml2/releases/tag/v5.0.0

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-5390

Impacted products

Name
PySAML2 PySAML2 <5.0.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-5390",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-5390"
    }
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  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/IdentityPython/pysaml2/releases/tag/v5.0.0",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-20393",
  "openTime": "2020-03-31",
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  "products": {
    "product": "PySAML2 PySAML2 \u003c5.0.0"
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-5390",
  "serverity": "\u4e2d",
  "submitTime": "2020-01-14",
  "title": "PySAML2 XML\u7b7e\u540d\u5305\u88c5\u6f0f\u6d1e"
}

CVE-2020-5390 (GCVE-0-2020-5390)

Vulnerability from cvelistv5

Published

2020-01-13 18:11

Modified

2024-08-04 08:30

Severity ?

CWE

Summary

PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature wrapping is effective, i.e., it is affected by XML Signature Wrapping (XSW). The signature information and the node/object that is signed can be in different places and thus the signature verification will succeed, but the wrong data will be used. This specifically affects the verification of assertion that have been signed.

References

▼	URL	Tags
	https://github.com/IdentityPython/pysaml2/commit/5e9d5acbcd8ae45c4e736ac521fd2df5b1c62e25	x_refsource_CONFIRM
	https://github.com/IdentityPython/pysaml2/commit/f27c7e7a7010f83380566a219fd6a290a00f2b6e	x_refsource_CONFIRM
	https://github.com/IdentityPython/pysaml2/releases/tag/v5.0.0	x_refsource_CONFIRM
	https://github.com/IdentityPython/pysaml2/releases	x_refsource_CONFIRM
	https://pypi.org/project/pysaml2/5.0.0/	x_refsource_MISC
	https://usn.ubuntu.com/4245-1/	vendor-advisory, x_refsource_UBUNTU
	https://www.debian.org/security/2020/dsa-4630	vendor-advisory, x_refsource_DEBIAN
	https://lists.debian.org/debian-lts-announce/2020/02/msg00025.html	mailing-list, x_refsource_MLIST

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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