Executive Summary

Informations
Name CVE-2017-11424 First vendor Publication 2017-08-24
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 PEM encoded format would be allowed because it is prefaced with the string `-----BEGIN RSA PUBLIC KEY-----` which is not accounted for. This enables symmetric/asymmetric key confusion attacks against users using the PKCS1 PEM encoded public keys, which would allow an attacker to craft JWTs from scratch.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11424

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2

Nessus® Vulnerability Scanner

Date Description
2018-01-15 Name : The remote Fedora host is missing a security update.
File : fedora_2017-0cc84101de.nasl - Type : ACT_GATHER_INFO
2017-10-23 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-1178.nasl - Type : ACT_GATHER_INFO
2017-09-25 Name : The remote Fedora host is missing a security update.
File : fedora_2017-b9f07dfaca.nasl - Type : ACT_GATHER_INFO
2017-09-20 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3979.nasl - Type : ACT_GATHER_INFO
2017-08-31 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3407-1.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

http://www.debian.org/security/2017/dsa-3979
https://github.com/jpadilla/pyjwt/pull/277
Source Url

Alert History

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Date Informations
2024-11-28 13:01:56
  • Multiple Updates
2022-06-08 01:28:00
  • Multiple Updates
2021-05-04 12:55:55
  • Multiple Updates
2021-04-22 02:08:35
  • Multiple Updates
2020-05-23 02:02:38
  • Multiple Updates
2020-05-23 00:55:12
  • Multiple Updates
2019-10-03 09:19:57
  • Multiple Updates
2019-05-11 00:18:57
  • Multiple Updates
2017-11-04 09:23:48
  • Multiple Updates
2017-10-24 13:25:29
  • Multiple Updates
2017-09-26 13:24:57
  • Multiple Updates
2017-09-21 13:25:07
  • Multiple Updates
2017-09-08 09:23:30
  • Multiple Updates
2017-09-01 13:25:27
  • Multiple Updates
2017-08-24 21:23:47
  • First insertion