CVE-2002-2443

krb5: UDP ping-pong flaw in kpasswd

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

schpw.c in the kpasswd service in kadmind in MIT Kerberos 5 (aka krb5) before 1.11.3 does not properly validate UDP packets before sending responses, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged packet that triggers a communication loop, as demonstrated by krb_pingpong.nasl, a related issue to CVE-1999-0103.

schpw.c en el servicio kpasswd en kadmind en MIT Kerberos 5 (conocido como krb5) anterior a v1.11.3 no valida correctamente los paquetes UDP antes de enviar respuestas, lo que permite a atacantes remotos provocar una denegación de servicio (consumo de CPU y ancho de banda) a través de un paquete "forged" que activa un circuito de comunicación, como se demostró en krb_pingpong.nasl, un fallo relacionado con CVE-1999-0103.

*Credits: N/A

CVSS Scores

NISTv2 5.0

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2013-05-10 CVE Reserved
2013-05-21 CVE Published
2024-08-08 CVE Updated
2024-08-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (13)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/krb5/krb5/commit/cf1a0c411b2668c57c41e9c4efd15ba17b6b322c	2021-02-02

URL	Date	SRC
http://krbdev.mit.edu/rt/Ticket/Display.html?id=7637	2021-02-02
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105879.html	2021-02-02
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105978.html	2021-02-02
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106698.html	2021-02-02
http://lists.opensuse.org/opensuse-updates/2013-07/msg00004.html	2021-02-02
http://lists.opensuse.org/opensuse-updates/2013-07/msg00007.html	2021-02-02
http://rhn.redhat.com/errata/RHSA-2013-0942.html	2021-02-02
http://www.debian.org/security/2013/dsa-2701	2021-02-02
http://www.mandriva.com/security/advisories?name=MDVSA-2013:166	2021-02-02
http://www.ubuntu.com/usn/USN-2810-1	2021-02-02
https://bugzilla.redhat.com/show_bug.cgi?id=962531	2013-06-12
https://access.redhat.com/security/cve/CVE-2002-2443	2013-06-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				< 1.11.3 Search vendor "Mit" for product "Kerberos 5" and version " < 1.11.3"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				11.4 Search vendor "Opensuse" for product "Opensuse" and version "11.4"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				12.2 Search vendor "Opensuse" for product "Opensuse" and version "12.2"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				12.3 Search vendor "Opensuse" for product "Opensuse" and version "12.3"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				17 Search vendor "Fedoraproject" for product "Fedora" and version "17"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				18 Search vendor "Fedoraproject" for product "Fedora" and version "18"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				19 Search vendor "Fedoraproject" for product "Fedora" and version "19"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				5.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "5.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				6.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Eus Search vendor "Redhat" for product "Enterprise Linux Eus"				5.9 Search vendor "Redhat" for product "Enterprise Linux Eus" and version "5.9"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Eus Search vendor "Redhat" for product "Enterprise Linux Eus"				6.4 Search vendor "Redhat" for product "Enterprise Linux Eus" and version "6.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				5.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "5.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				6.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				6.4 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "6.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				5.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "5.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				6.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "6.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				6.0 Search vendor "Debian" for product "Debian Linux" and version "6.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10"		-		Affected