PySAML2 におけるデジタル署名の検証に関する脆弱性
| Title |
PySAML2 におけるデジタル署名の検証に関する脆弱性
|
| Summary |
PySAML2 には、デジタル署名の検証に関する脆弱性が存在します。
|
| Possible impacts |
情報を改ざんされる可能性があります。 |
| Solution |
ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date |
Jan. 20, 2021, midnight |
| Registration Date |
Oct. 6, 2021, 6:05 p.m. |
| Last Update |
Oct. 6, 2021, 6:05 p.m. |
|
CVSS3.0 : 警告
|
| Score |
6.5
|
| Vector |
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
|
CVSS2.0 : 警告
|
| Score |
4.3
|
| Vector |
AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected System
| PySAML2 project |
|
PySAML2 6.5.0 未満
|
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2021年10月06日]
掲載 |
Oct. 6, 2021, 6:05 p.m. |
NVD Vulnerability Information
CVE-2021-21238
| Summary |
PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. All users of pysaml2 that need to validate signed SAML documents are impacted. The vulnerability is a variant of XML Signature wrapping because it did not validate the SAML document against an XML schema. This allowed invalid XML documents to be processed and such a document can trick pysaml2 with a wrapped signature. This is fixed in PySAML2 6.5.0.
|
| Publication Date |
Jan. 22, 2021, 12:15 a.m. |
| Registration Date |
Jan. 26, 2021, 10:40 a.m. |
| Last Update |
Nov. 21, 2024, 2:47 p.m. |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:pysaml2_project:pysaml2:*:*:*:*:*:*:*:* |
|
|
|
6.5.0 |
Related information, measures and tools
Common Vulnerabilities List