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CVE-2024-21596
CVE ID
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CVE-2024-21596
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
A Heap-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS).
If an attacker sends a specific BGP UPDATE message to the device, this will cause a memory overwrite and therefore an RPD crash and restart in the backup Routing Engine (RE). Continued receipt of these packets will cause a sustained Denial of Service (DoS) condition in the backup RE.
The primary RE is not impacted by this issue and there is no impact on traffic.
This issue only affects devices with NSR enabled.
Note: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability.
This issue requires an attacker to have an established BGP session to a system affected by the issue. This issue affects both eBGP and iBGP implementations.
This issue affects:
Juniper Networks Junos OS
- All versions earlier than 20.4R3-S9;
- 21.2 versions earlier than 21.2R3-S7;
- 21.3 versions earlier than 21.3R3-S5;
- 21.4 versions earlier than 21.4R3-S5;
- 22.1 versions earlier than 22.1R3-S4;
- 22.2 versions earlier than 22.2R3-S2;
- 22.3 versions earlier than 22.3R3-S1;
- 22.4 versions earlier than 22.4R2-S2, 22.4R3;
- 23.1 versions earlier than 23.1R2;
- 23.2 versions earlier than 23.2R1-S2, 23.2R2.
Juniper Networks Junos OS Evolved
- All versions earlier than 21.3R3-S5-EVO;
- 21.4-EVO versions earlier than 21.4R3-S5-EVO;
- 22.1-EVO versions earlier than 22.1R3-S4-EVO;
- 22.2-EVO versions earlier than 22.2R3-S2-EVO;
- 22.3-EVO versions later than 22.3R1-EVO;
- 22.4-EVO versions earlier than 22.4R2-S2-EVO, 22.4R3-EVO;
- 23.1-EVO versions earlier than 23.1R2-EVO;
- 23.2-EVO versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO.
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CVSS V3 Severity and Metrics
General Information
Vendors
Products
- junos 20.4,
- junos 21.2,
- junos 21.3,
- junos 21.4,
- junos 22.1,
- junos 22.2,
- junos 22.3,
- junos 22.4,
- junos 23.1,
- junos 23.2,
- junos os evolved 21.3,
- junos os evolved 21.4,
- junos os evolved 22.1,
- junos os evolved 22.2,
- junos os evolved 22.3,
- junos os evolved 22.4,
- junos os evolved 23.1,
- junos os evolved 23.2
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Zero-day Exploit
Report as Exploited in the Wild
CVE ID
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