PT-2017-10777 · Bitly · Oauth2 Proxy

Jehiah · Published 2017-07-13 · Updated 2021-12-20 · CVE-2017-1000070

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Bitly oauth2 proxy versions 2.1 and earlier

Description The issue is related to an open redirect vulnerability that occurs during the start and termination of the 2-legged OAuth flow. This is caused by improper input validation and a violation of RFC-6819.

Recommendations For versions 2.1 and earlier, update to a version that addresses the improper input validation issue to prevent open redirect vulnerabilities.

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

CVE-2017-1000070

GHSA-JM34-XM8M-W958

Affected Products

Oauth2 Proxy

References · 8

• https://github.com/bitly/oauth2_proxy/pull/359 · Patch
• https://osv.dev/vulnerability/GHSA-jm34-xm8m-w958 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-1000070 · Security Note
• https://osv.dev/vulnerability/CVE-2017-1000070 · Vendor Advisory
• https://github.com/bitly/oauth2_proxy/commit/289a6ccf463a425c7606178c510fc5eeb9c8b050 · Note
• https://github.com/bitly/oauth2_proxy/issues/228 · Note
• https://tools.ietf.org/html/rfc6819#section-5.2.3.5 · Note
• https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-1000070 · Note