High severity · published Aug 11, 2023
CVE-2023-22955
An issue was discovered on AudioCodes VoIP desk phones through 3.4.4.1000
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
An issue was discovered on AudioCodes VoIP desk phones through 3.4.4.1000. The validation of firmware images only consists of simple checksum checks for different firmware components. Thus, by knowing how to calculate and where to store the required checksums for the flasher tool, an attacker is able to store malicious firmware.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
4F
405hd Firmware · Audiocodes
through 3.4.4.1000 · source: NVD
4F
445hd Firmware · Audiocodes
through 3.4.4.1000 · source: NVD
CF
C450hd Firmware · Audiocodes
through 3.4.4.1000 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-22955
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-22955
Third Party Advisory
http://packetstormsecurity.com/files/174214/AudioCodes-VoIP-Phones-Insufficient-Firmware-Validation.html
Mailing List
http://seclists.org/fulldisclosure/2023/Aug/17
Not Applicable
https://syss.de
Exploit
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2022-055.txt
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