CVE-2023-44198: Junos OS: SRX Series and MX Series: SIP ALG doesn't drop specifically malformed retransmitted SIP packets
An Improper Check for Unusual or Exceptional Conditions vulnerability in the SIP ALG of Juniper Networks Junos OS on SRX Series and MX Series allows an unauthenticated network-based attacker to cause an integrity impact in connected networks.
If the SIP ALG is configured and a device receives a specifically malformed SIP packet, the device prevents this packet from being forwarded, but any subsequently received retransmissions of the same packet are forwarded as if they were valid.
This issue affects Juniper Networks Junos OS on SRX Series and MX Series:
20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S2; 22.1 versions prior to 22.1R2-S2, 22.1R3; 22.2 versions prior to 22.2R2-S1, 22.2R3; 22.3 versions prior to 22.3R1-S2, 22.3R2.
This issue doesn't not affected releases prior to 20.4R1.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2023-44198?
CVE-2023-44198 is classified as having a moderate severity level.
How do I fix CVE-2023-44198?
To fix CVE-2023-44198, update your Junos OS to a version that addresses this vulnerability.
Which versions of Junos OS are affected by CVE-2023-44198?
CVE-2023-44198 affects Juniper Networks Junos OS versions prior to 20.4 and multiple versions in the 21.x and 22.x series.
What kind of impact can CVE-2023-44198 have?
CVE-2023-44198 can cause an integrity impact in connected networks due to improper checks in the SIP ALG.
Is CVE-2023-44198 exploitable remotely?
Yes, CVE-2023-44198 can be exploited by unauthenticated remote attackers.