PT-2021-21367 · Showdoc · Showdoc

Published 2021-08-04 · Updated 2022-10-27 · CVE-2021-3680

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions showdoc (affected versions not specified)

Description The issue concerns a missing cryptographic step in showdoc. Specifically, showdoc makes use of a hardcoded salt in its user password hash function. There is no information provided about the estimated number of potentially affected devices worldwide or details about real-world incidents where this issue was exploited.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Verification of Cryptographic Signature

Inadequate Encryption Strength

Weakness Enumeration

CWE-325

CWE-347

CWE-326

Related Identifiers

CVE-2021-3680

GHSA-8VH3-29MR-M9XG

Affected Products

Showdoc

References · 9

• 🔥 https://huntr.dev/bounties/76b49607-fba9-4100-9be7-cb459fe6cfe2 · Exploit
• https://github.com/star7th/showdoc/commit/4b962c1740311e0d46775023b6acba39ad60e370 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-3680 · Security Note
• https://osv.dev/vulnerability/CVE-2021-3680 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-8vh3-29mr-m9xg · Vendor Advisory
• https://github.com/star7th/showdoc · Note
• https://github.com/star7th/showdoc/blob/fd1740234a12804b45af9cac3563567d83ba414d/server/Application/Home/Model/UserModel.class.php#L20 · Note
• https://t.me/cibsecurity/26796 · Telegram Post
• https://t.me/cvenotify/18617 · Telegram Post