PT-2021-17851 · Unknown · Tiny Tiny Rss

Daniel + 1 · Published 2021-03-13 · Updated 2021-03-18 · CVE-2021-28373

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Tiny Tiny RSS (aka tt-rss) versions prior to 2021-03-12

Description: The auth internal plugin in Tiny Tiny RSS allows an attacker to log in via the OTP code without a valid password. This issue only affected the git master branch for a short time. However, all end users are explicitly directed to use the git master branch in production.

Recommendations: For versions prior to 2021-03-12, update to a version after 2021-03-12 to resolve the issue. As a temporary workaround, consider disabling the auth internal plugin until a patch is available. Restrict access to the OTP code login functionality to minimize the risk of exploitation.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2021-28373

Affected Products

Tiny Tiny Rss

References · 6

• https://osv.dev/vulnerability/CVE-2021-28373 · Vendor Advisory
• https://git.tt-rss.org/fox/tt-rss/commit/4949e1a59059d9e72ba7a98f783cec312c06c6d2 · Patch
• https://community.tt-rss.org/t/check-password-not-called-if-otp-is-enabled-update-asap-if-youre-using-2fa/4502 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-28373 · Security Note
• https://t.me/cvenotify/11308 · Telegram Post
• https://t.me/cvenotify/11538 · Telegram Post