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Medium severity · published Jan 12, 2024
CVE-2023-50920
An issue was discovered on GL.iNet devices before version 4.5.0
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
An issue was discovered on GL.iNet devices before version 4.5.0. They assign the same session ID after each user reboot, allowing attackers to share session identifiers between different sessions and bypass authentication or access control measures. Attackers can impersonate legitimate users or perform unauthorized actions. This affects A1300 4.4.6, AX1800 4.4.6, AXT1800 4.4.6, MT3000 4.4.6, MT2500 4.4.6, MT6000 4.5.0, MT1300 4.3.7, MT300N-V2 4.3.7, AR750S 4.3.7, AR750 4.3.7, AR300M 4.3.7, and B1300 4.3.7.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GF
Gl-a1300 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-ar300m Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-ar750 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-ar750s Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-ax1800 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-axt1800 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-b1300 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-mt1300 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-mt2500 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-mt3000 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-mt300n-v2 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
GF
Gl-mt6000 Firmware · Gl-inet
4.3.7; 4.4.6 · source: NVD
Affected product
GF
Gl-a1300 Firmware
Gl-inet
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-50920
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-50920
Exploit
https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Authentication-bypass-seesion-ID.md
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