Improper Restriction of Excessive Authentication Attempts in the SICK ICR890-4 could allow a remote attacker to brute-force user credentials
Improper Restriction of Excessive Authentication Attempts in the SICK ICR890-4 could allow a remote attacker to brute-force user credentials.
- Published
- Jul 10, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.9% · 58th percentile
- CWE
- CWE-307
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.9%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.5
- CNA · SICK AG
- 5.3
- 2.2 point gap
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| sick | icr890-4 firmware | cpe:2.3:o:sick:icr890-4_firmware |
| sick | icr890-4 | cpe:2.3:h:sick:icr890-4 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- sick icr890-4 firmwarebefore 2.5.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (SICK AG). Independent of NVD's CPE analysis and usually ahead of it.
SICK AG ICR890-4
- before 2.5.0affected · *
Same product
sick: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-3273Improper Access Control in the SICK ICR890-4 could allow an unauthenticated remote attacker to affect the availability of the device by chan30Monitor
- CVE-2023-3272Cleartext Transmission of Sensitive Information in the SICK ICR890-4 could allow a
remote attacker to gather sensitive information by interc30Monitor
- CVE-2023-3271Improper Access Control in the SICK ICR890-4 could allow an unauthenticated remote attacker to gather information about the system and downl30Monitor
- CVE-2023-3270Exposure of Sensitive Information to an Unauthorized Actor in the SICK ICR890-4 could allow an unauthenticated remote attacker to retrieve s30Monitor
- CVE-2023-35696Unauthenticated endpoints in the SICK ICR890-4 could allow an unauthenticated
remote attacker to retrieve sensitive information about the de30Monitor
- CVE-2023-35698Observable Response Discrepancy in the SICK ICR890-4 could allow a remote attacker to identify valid usernames for the FTP server from the r21Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| SICK AG ICR890-4 | 2.5.0 | Vendor (CNA) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-307 · Improper Restriction of Excessive Authentication AttemptsCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Dictionary-based Password AttackCAPEC-16likelihood: Medium · High
- Password Brute ForcingCAPEC-49likelihood: Medium · High
- Use of Known Domain CredentialsCAPEC-560likelihood: High · High
- Password SprayingCAPEC-565likelihood: High · High
- Credential StuffingCAPEC-600likelihood: High · High
- Use of Known Kerberos CredentialsCAPEC-652likelihood: Medium · High
- Use of Known Operating System CredentialsCAPEC-653likelihood: High · High
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- sick.com/.well-known/csaf/white/2023/sca-2023-0006.json
- sick.com/.well-known/csaf/white/2023/sca-2023-0006.pdf
- sick.com/psirt
Vendor advisories and official records. Exploit/PoC links are deliberately left out.