VulnerabilityModified

CVE-2002-0824

BSD pppd allows local users to change the permissions of arbitrary files via a symlink attack on a file that is specified as a tty device.

EXPLOIT ✓MEDIUM 6.9EPSS 0.66%

Does this matter?

A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 0.7%. Treat it as high on anything reachable from the internet.

Description

BSD pppd allows local users to change the permissions of arbitrary files via a symlink attack on a file that is specified as a tty device.

CVSS 2.0: 6.9 MEDIUMAV:L/AC:M/Au:N/C:C/I:C/A:C
EPSS: 0.66% probability · 51th percentile
Public exploits: 1 in Exploit-DB · verified · first 29 July 2002
CISA KEV: Not listed
Weakness: CWE-59
Affected: freebsd/point-to-point protocol daemon
Source: cve@mitre.org

EPSS trend

EPSS 0.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-ID	Title	Type	Published	Verified
EDB-21669 source ↗	FreeBSD 4.x / NetBSD 1.4.x/1.5.x/1.6 / OpenBSD 3 - pppd Arbitrary File Permission Modification Race Conditionbsd · Sebastian Krahmer	local	29 July 2002	yes

References

ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2002-010.txt.ascBroken Link
http://marc.info/?l=bugtraq&m=102812546815606&w=2Issue Tracking, Mailing List, Third Party Advisory
http://www.iss.net/security_center/static/9738.phpBroken Link
http://www.openbsd.org/errata31.htmlThird Party Advisory
http://www.securityfocus.com/bid/5355Third Party Advisory, VDB Entry
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2002-010.txt.ascBroken Link
http://marc.info/?l=bugtraq&m=102812546815606&w=2Issue Tracking, Mailing List, Third Party Advisory
http://www.iss.net/security_center/static/9738.phpBroken Link
http://www.openbsd.org/errata31.htmlThird Party Advisory
http://www.securityfocus.com/bid/5355Third Party Advisory, VDB Entry

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.