cbcvebase.
CVE-2005-0356
published 2005-05-31

CVE-2005-0356: Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a…

PriorityP337medium5CVSS 2.0
AVNACLAuNCNINAP
EXPLOIT
EPSS
82.76%
99.6th percentile
Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with a large timer value, which causes the host to discard later packets because they appear to be too old.

Affected

180 ranges· showing 25
VendorProductVersion rangeFixed in
alaxalaalaxala_networks
alaxalaalaxala_networks
alaxalaalaxala_networks
ciscocall_manager
ciscocall_manager
ciscocall_manager
ciscocall_manager
ciscocall_manager
ciscocall_manager
ciscocall_manager
ciscocall_manager
ciscocall_manager
ciscocall_manager
ciscociscoworks_access_control_list_manager
ciscociscoworks_access_control_list_manager
ciscociscoworks_cd1
ciscociscoworks_cd1
ciscociscoworks_cd1
ciscociscoworks_cd1
ciscociscoworks_cd1
ciscociscoworks_common_management_foundation
ciscociscoworks_common_management_foundation
ciscociscoworks_common_management_foundation
ciscociscoworks_common_services
ciscociscoworks_lms

Detection & IOCsextracted from sources · hover to see the quote

commandsend_tcp(sock, saddr, daddr, sport, dport, seq, ts) || send_tcp(sock, saddr, daddr, sport, dport, seq, op(ts)) || send_tcp(sock, saddr, daddr, sport, dport, op(seq), ts) || send_tcp(sock, saddr, daddr, sport, dport, op(seq), op(ts))
  • Look for raw TCP packets (IPPROTO_RAW) with IP_HDRINCL set, carrying TCP TIMESTAMP options (NOP, NOP, TIMESTAMP, length=10) with th_flags=0 (no SYN/FIN/ACK/RST) and th_ack=0, which is abnormal for mid-session traffic and characteristic of this exploit.
  • ·This vulnerability only affects TCP implementations that have both PAWS (Protection Against Wrapped Sequence Numbers) and the TCP timestamps option enabled. Disabling TCP timestamps mitigates the attack.
  • ·Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2 kernel packages are NOT affected; detection/patching efforts should focus on other OS/kernel versions.

CVSS provenance

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
vendor_redhat5.0MEDIUM
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