PT-2020-14845 · Rails · Pghero

Heiko Webers · Published 2020-08-05 · Updated 2020-08-05 · CVE-2020-16253

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions PgHero gem versions through 2.6.0

Description The issue allows CSRF attacks. Normally, PgHero uses the protect from forgery method from Rails to prevent CSRF, but this defaults to :null session, which has no effect on non-session based authentication methods. Thus, the gem is vulnerable with non-session based authentication methods like basic authentication.

Recommendations For PgHero gem versions through 2.6.0, consider disabling non-session based authentication methods like basic authentication until a patch is available. Restrict access to vulnerable endpoints to minimize the risk of exploitation.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2020-16253

GHSA-V6FX-752R-CCP2

Affected Products

Pghero

References · 7

• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/pghero/CVE-2020-16253.yml · Exploit
• https://osv.dev/vulnerability/CVE-2020-16253 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-v6fx-752r-ccp2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-16253 · Security Note
• https://github.com/ankane/pghero/issues/330 · Note
• https://github.com/ankane/pghero · Note
• https://github.com/ankane/pghero/commit/14b67b32fed19a30aaf9826ee72f2a29cda604e9 · Note