Vulnerability Details : CVE-2017-1000070
The Bitly oauth2_proxy in version 2.1 and earlier was affected by an open redirect vulnerability during the start and termination of the 2-legged OAuth flow. This issue was caused by improper input validation and a violation of RFC-6819
Vulnerability category: Open redirect
Exploit prediction scoring system (EPSS) score for CVE-2017-1000070
Probability of exploitation activity in the next 30 days: 0.09%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 35 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-1000070
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST |
|
6.1
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2017-1000070
-
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-1000070
-
https://tools.ietf.org/html/rfc6819#section-5.2.3.5
RFC 6819 - OAuth 2.0 Threat Model and Security ConsiderationsTechnical Description
-
https://github.com/bitly/oauth2_proxy/pull/359
Improve redirect checks by jehiah · Pull Request #359 · bitly/oauth2_proxy · GitHubPatch;Third Party Advisory
Products affected by CVE-2017-1000070
- cpe:2.3:a:oauth2_proxy_project:oauth2_proxy:*:*:*:*:*:*:*:*