Medium severity · published Jul 17, 2017
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
6.1
CVSS
1%
EPSS
No
On KEV
Description
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
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Oauth2 Proxy · Oauth2 Proxy Project
through 2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-1000070
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-1000070
Patch
https://github.com/bitly/oauth2_proxy/pull/359
Technical Description
https://tools.ietf.org/html/rfc6819#section-5.2.3.5
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