High severity · published Dec 8, 2022
CVE-2022-20968
A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a…
8.8
CVSS
6.4%
EPSS
No
On KEV
Description
A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a stack overflow on an affected device.
This vulnerability is due to insufficient input validation of received Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol traffic to an affected device. A successful exploit could allow the attacker to cause a stack overflow, resulting in possible remote code execution or a denial of service (DoS) condition on an affected device.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.4% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CS
Cisco Session Initiation Protocol (SIP) Software · Cisco
9.3(4) 3rd Party; 9.3(4)SR3 3rd Party; 9.3(4)SR1 3rd Party; 9.3(4)SR2 3rd Party; 11.5(1); 11.7(1); +34 more · source: vendor
IP
IP Phone 7811 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 7821 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 7832 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 7841 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 7861 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 8811 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 8831 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 8832 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 8841 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 8845 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
IP
IP Phone 8851 Firmware · Cisco
9.3(3); 9.3(4); 9.3(4)sr1; 9.3(4)sr2; 9.3(4)sr3; 10.1(1)sr1; +34 more · source: NVD
Affected product
CS
Cisco Session Initiation Protocol (SIP) Software
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-20968
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-20968
sec.cloudapps.cisco.com
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipp-oobwrite-8cMF5r7U
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