CVE-2024-20357 Memory corruption in Cisco IP Phones with Multiplatform Firmware
Unauthenticated remote attackers can initiate calls or play sounds on Cisco IP phones due to missing bounds checking in XML parsing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-20357?
CVE-2024-20357 is a medium-severity memory corruption vulnerability in Cisco IP Phones with Multiplatform Firmware, published on 1 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the XML service of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to initiate phone calls on an affected device. This vulnerability exists because bounds-checking does not occur while parsing XML requests. An attacker could exploit this vulnerability by sending a crafted XML request to an affected device. A successful exploit could allow the attacker to initiate calls or play sounds on the device.
Weakness: CWE-787
Which versions are affected by CVE-2024-20357?
It affects 18 products.
Products include Cisco Ip Phone 6821 With Multiplatform Firmware, Cisco Ip Phone 6841 With Multiplatform Firmware, Cisco Ip Phone 6851 With Multiplatform Firmware, Cisco Ip Phone 6861 With Multiplatform Firmware, Cisco Ip Phone 6871 With Multiplatform Firmware, Cisco Ip Phone 7811 With Multiplatform Firmware and 12 more.
How do I fix CVE-2024-20357?
No fix has been published for CVE-2024-20357 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-20357 being exploited?
There is no known exploitation of CVE-2024-20357 in the wild and no public exploit code.
Other vulnerabilities in Cisco IP Phones with Multiplatform Firmware
Sources
Also known as GHSA-49gp-r5pw-pqg8.