Skip to main content

0852 0303 Firmware CVE-2021-20997

HIGH
Insufficiently Protected Credentials (CWE-522)
2021-05-13 info@cert.vde.com
Information Disclosure 0852 0303 Firmware 0852 1305 Firmware 0852 1505 Firmware 0852 1305 000 001 Firmware 0852 1505 000 001 Firmware
7.5
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

1
CVE Published
May 13, 2021 - 14:15 nvd
HIGH 7.5

DescriptionNVD

In multiple managed switches by WAGO in different versions it is possible to read out the password hashes of all Web-based Management users.

AnalysisAI

In multiple managed switches by WAGO in different versions it is possible to read out the password hashes of all Web-based Management users. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Insufficiently Protected Credentials (CWE-522), which allows attackers to obtain user credentials due to weak protection mechanisms. In multiple managed switches by WAGO in different versions it is possible to read out the password hashes of all Web-based Management users. Affected products include: Wago 0852-0303 Firmware, Wago 0852-1305 Firmware, Wago 0852-1505 Firmware, Wago 0852-1305\/000-001 Firmware, Wago 0852-1505\/000-001 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Hash passwords with strong algorithms (bcrypt, argon2), encrypt credentials in transit and at rest, never log credentials.

More in 0852 0303 Firmware

View all
CVE-2021-20998 CRITICAL
9.8 May 13

In multiple managed switches by WAGO in different versions without authorization and with specially crafted packets it i
CVE-2021-20995 HIGH
7.5 May 13

In multiple managed switches by WAGO in different versions the webserver cookies of the web based UI contain user creden
CVE-2021-20994 MEDIUM
6.1 May 13

In multiple managed switches by WAGO in different versions an attacker may trick a legitimate user to click a link to in
CVE-2021-20996 MEDIUM
5.3 May 13

In multiple managed switches by WAGO in different versions special crafted requests can lead to cookies being transferre
CVE-2021-20993 MEDIUM
5.3 May 13

In multiple managed switches by WAGO in different versions the activated directory listing provides an attacker with the

Same weakness CWE-522 – Insufficiently Protected Credentials

View all
CVE-2017-9248 CRITICAL POC
9.8
CVE-2024-44000 CRITICAL POC
9.8
CVE-2023-6421 HIGH POC
7.5
CVE-2017-8225 CRITICAL POC
9.8
CVE-2025-25570 CRITICAL POC
9.8
CVE-2017-17106 CRITICAL POC
9.8
CVE-2017-8837 CRITICAL POC
9.8
CVE-2017-3192 CRITICAL
9.8

Same technique Information Disclosure

View all
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5
CVE-2014-6324 HIGH POC
8.8
CVE-2023-7028 CRITICAL POC
10.0
CVE-2017-0213 HIGH POC
7.3

Share

CVE-2021-20997 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy