Junos OS: QFX10K Series: An ICCP flap will be observed due to excessive specific traffic
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 20.2R3-S7, 20.4R3-S4, 21.1R3-S3, 21.2R3-S1, 21.3R3, and 2 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
An Allocation of Resources Without Limits or Throttling vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). On QFX10K Series, Inter-Chassis Control Protocol (ICCP) is used in MC-LAG topologies to exchange control information between the devices in the topology. ICCP connection flaps and sync issues will be observed due to excessive specific traffic to the local device. This issue affects Juniper Networks Junos OS on QFX10K Series: • All versions prior to 20.2R3-S7; • 20.4 versions prior to 20.4R3-S4; • 21.1 versions prior to 21.1R3-S3; • 21.2 versions prior to 21.2R3-S1; • 21.3 versions prior to 21.3R3; • 21.4 versions prior to 21.4R3; • 22.1 versions prior to 22.1R2.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Juniper Networks Junos OS
fixed in 20.2R3-S7; From 20.4 · fixed in 20.4R3-S4; From 21.1 · fixed in 21.1R3-S3; From 21.2 · fixed in 21.2R3-S1; From 21.3 · fixed in 21.3R3; From 21.4 · fixed in 21.4R3; From 22.1 · fixed in 22.1R2