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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2021-28373
HistoryMar 13, 2021 - 9:15 p.m.

CVE-2021-28373

2021-03-1321:15:14
Debian Security Bug Tracker
security-tracker.debian.org
5
tiny tiny rss
auth_internal plugin
otp login
security vulnerability
git master branch
production.

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS

0.001

Percentile

38.7%

The auth_internal plugin in Tiny Tiny RSS (aka tt-rss) before 2021-03-12 allows an attacker to log in via the OTP code without a valid password. NOTE: 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. Semantic version numbers such as 21.03 appear to exist, but are automatically generated from the year and month. They are not releases.

OSVersionArchitecturePackageVersionFilename
Debian12alltt-rss< 21~git20210204.b4cbc79+dfsg-1.2tt-rss_21~git20210204.b4cbc79+dfsg-1.2_all.deb
Debian11alltt-rss< 21~git20210204.b4cbc79+dfsg-1tt-rss_21~git20210204.b4cbc79+dfsg-1_all.deb
Debian999alltt-rss< 21~git20210204.b4cbc79+dfsg-1.3tt-rss_21~git20210204.b4cbc79+dfsg-1.3_all.deb

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS

0.001

Percentile

38.7%

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