SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2002-0514

PF in OpenBSD 3.0 with the return-rst rule sets the TTL to 128 in the RST packet, which allows remote attackers to determine if a port is being filtered because the TTL is different than the default TTL.

MEDIUM 5.0EPSS 1.97%

Does this matter?

Lower severity and a low EPSS score (1.97%). Track it; it rarely justifies an emergency change on its own.

Description

PF in OpenBSD 3.0 with the return-rst rule sets the TTL to 128 in the RST packet, which allows remote attackers to determine if a port is being filtered because the TTL is different than the default TTL.

CVSS 2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
EPSS
1.97% probability · 79th percentile
CISA KEV
Not listed
Weakness
CWE-203
Affected
openbsd/openbsd
Source
cve@mitre.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.