CVE-2021-29047 : The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP

The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.

Published 2021-05-16 16:15:07

Updated 2021-05-24 20:45:15

Source MITRE

View at NVD, CVE.org

Vulnerability category: BypassGain privilege

Products affected by CVE-2021-29047

Liferay » Liferay Portal » Version: 7.3.5
cpe:2.3:a:liferay:liferay_portal:7.3.5:*:*:*:*:*:*:*
Matching versions
Liferay » Liferay Portal » Version: 7.3.4
cpe:2.3:a:liferay:liferay_portal:7.3.4:*:*:*:*:*:*:*
Matching versions
Liferay » DXP
Versions before (<) 7.3
cpe:2.3:a:liferay:dxp:*:*:*:*:*:*:*:*
Matching versions
Liferay » DXP » Version: 7.3
cpe:2.3:a:liferay:dxp:7.3:-:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2021-29047

Top countries where our scanners detected CVE-2021-29047

Top open port discovered on systems with this issue 80

IPs affected by CVE-2021-29047 25

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2021-29047!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2021-29047

EPSS FAQ

0.18%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 55 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-29047

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2021-29047

CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-29047

http://liferay.com

Digital Experience Software Tailored to Your Needs | Liferay
Vendor Advisory

CVEs referencing this url
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120743467

CVE-2021-29047 SimpleCaptcha answer reuse
Vendor Advisory