High severity · published Oct 30, 2024
CVE-2024-28875
A security flaw involving hard-coded credentials in LevelOne WBR-6012's web services allows attackers to gain unauthorized access during the first 30 seconds post-boot
8.1
CVSS
0.7%
EPSS
No
On KEV
Description
A security flaw involving hard-coded credentials in LevelOne WBR-6012's web services allows attackers to gain unauthorized access during the first 30 seconds post-boot. Other vulnerabilities can force a reboot, circumventing the initial time restriction for exploitation.The backdoor string can be found at address 0x80100910
80100910 40 6d 21 74 ds "@m!t2K1"
32 4b 31 00
It is referenced by the function located at 0x800b78b0 and is used as shown in the pseudocode below:
if ((SECOND_FROM_BOOT_TIME < 300) &&
(is_equal = strcmp(password,"@m!t2K1")) {
return 1;}
Where 1 is the return value to admin-level access (0 being fail and 3 being user).
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WB
WBR-6012 · LevelOne
R0.40e6 · source: vendor, CISA
WF
Wbr-6012 Firmware · Level1
r0.40e6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-28875
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-28875
Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2024-1979
www.talosintelligence.com
https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1979
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