5.0
MEDIUM
CVE-2009-0845
Krb5 SPNEGO NULL Pointer Dereference Vulnerability
Description

The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token.

INFO

Published Date :

March 27, 2009, 4:30 p.m.

Last Modified :

Nov. 21, 2024, 1:01 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.9

Exploitability Score :

10.0
Affected Products

The following products are affected by CVE-2009-0845 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mit kerberos_5
2 Mit kerberos
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2009-0845.

URL Resource
http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
http://secunia.com/advisories/34347 Vendor Advisory
http://secunia.com/advisories/34594
http://secunia.com/advisories/34617
http://secunia.com/advisories/34622
http://secunia.com/advisories/34628
http://secunia.com/advisories/34630
http://secunia.com/advisories/34637
http://secunia.com/advisories/34640
http://secunia.com/advisories/34734
http://secunia.com/advisories/35074 Vendor Advisory
http://security.gentoo.org/glsa/glsa-200904-09.xml
http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084 Exploit
http://src.mit.edu/fisheye/changelog/krb5/?cs=22084 Vendor Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
http://support.apple.com/kb/HT3549
http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt
http://wiki.rpath.com/Advisories:rPSA-2009-0058
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
http://www-01.ibm.com/support/docview.wss?uid=swg21396120
http://www.kb.cert.org/vuls/id/662091 US Government Resource
http://www.mandriva.com/security/advisories?name=MDVSA-2009:082
http://www.redhat.com/support/errata/RHSA-2009-0408.html
http://www.securityfocus.com/archive/1/502526/100/0/threaded
http://www.securityfocus.com/archive/1/502546/100/0/threaded
http://www.securityfocus.com/bid/34257
http://www.securitytracker.com/id?1021867
http://www.ubuntu.com/usn/usn-755-1
http://www.us-cert.gov/cas/techalerts/TA09-133A.html US Government Resource
http://www.vupen.com/english/advisories/2009/0847 Vendor Advisory
http://www.vupen.com/english/advisories/2009/0976
http://www.vupen.com/english/advisories/2009/1057
http://www.vupen.com/english/advisories/2009/1106
http://www.vupen.com/english/advisories/2009/1297
http://www.vupen.com/english/advisories/2009/2248 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/49448
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10044
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6449
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html
http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
http://secunia.com/advisories/34347 Vendor Advisory
http://secunia.com/advisories/34594
http://secunia.com/advisories/34617
http://secunia.com/advisories/34622
http://secunia.com/advisories/34628
http://secunia.com/advisories/34630
http://secunia.com/advisories/34637
http://secunia.com/advisories/34640
http://secunia.com/advisories/34734
http://secunia.com/advisories/35074 Vendor Advisory
http://security.gentoo.org/glsa/glsa-200904-09.xml
http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084 Exploit
http://src.mit.edu/fisheye/changelog/krb5/?cs=22084 Vendor Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
http://support.apple.com/kb/HT3549
http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt
http://wiki.rpath.com/Advisories:rPSA-2009-0058
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
http://www-01.ibm.com/support/docview.wss?uid=swg21396120
http://www.kb.cert.org/vuls/id/662091 US Government Resource
http://www.mandriva.com/security/advisories?name=MDVSA-2009:082
http://www.redhat.com/support/errata/RHSA-2009-0408.html
http://www.securityfocus.com/archive/1/502526/100/0/threaded
http://www.securityfocus.com/archive/1/502546/100/0/threaded
http://www.securityfocus.com/bid/34257
http://www.securitytracker.com/id?1021867
http://www.ubuntu.com/usn/usn-755-1
http://www.us-cert.gov/cas/techalerts/TA09-133A.html US Government Resource
http://www.vupen.com/english/advisories/2009/0847 Vendor Advisory
http://www.vupen.com/english/advisories/2009/0976
http://www.vupen.com/english/advisories/2009/1057
http://www.vupen.com/english/advisories/2009/1106
http://www.vupen.com/english/advisories/2009/1297
http://www.vupen.com/english/advisories/2009/2248 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/49448
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10044
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6449
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2009-0845 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2009-0845 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402
    Added Reference http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
    Added Reference http://secunia.com/advisories/34347
    Added Reference http://secunia.com/advisories/34594
    Added Reference http://secunia.com/advisories/34617
    Added Reference http://secunia.com/advisories/34622
    Added Reference http://secunia.com/advisories/34628
    Added Reference http://secunia.com/advisories/34630
    Added Reference http://secunia.com/advisories/34637
    Added Reference http://secunia.com/advisories/34640
    Added Reference http://secunia.com/advisories/34734
    Added Reference http://secunia.com/advisories/35074
    Added Reference http://security.gentoo.org/glsa/glsa-200904-09.xml
    Added Reference http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084
    Added Reference http://src.mit.edu/fisheye/changelog/krb5/?cs=22084
    Added Reference http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
    Added Reference http://support.apple.com/kb/HT3549
    Added Reference http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
    Added Reference http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
    Added Reference http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
    Added Reference http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt
    Added Reference http://wiki.rpath.com/Advisories:rPSA-2009-0058
    Added Reference http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
    Added Reference http://www.kb.cert.org/vuls/id/662091
    Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2009:082
    Added Reference http://www.redhat.com/support/errata/RHSA-2009-0408.html
    Added Reference http://www.securityfocus.com/archive/1/502526/100/0/threaded
    Added Reference http://www.securityfocus.com/archive/1/502546/100/0/threaded
    Added Reference http://www.securityfocus.com/bid/34257
    Added Reference http://www.securitytracker.com/id?1021867
    Added Reference http://www.ubuntu.com/usn/usn-755-1
    Added Reference http://www.us-cert.gov/cas/techalerts/TA09-133A.html
    Added Reference http://www.vupen.com/english/advisories/2009/0847
    Added Reference http://www.vupen.com/english/advisories/2009/0976
    Added Reference http://www.vupen.com/english/advisories/2009/1057
    Added Reference http://www.vupen.com/english/advisories/2009/1106
    Added Reference http://www.vupen.com/english/advisories/2009/1297
    Added Reference http://www.vupen.com/english/advisories/2009/2248
    Added Reference http://www-01.ibm.com/support/docview.wss?uid=swg21396120
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/49448
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10044
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6449
    Added Reference https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
    Added Reference https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.6.2:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.6.2:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.6.1:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.6.1:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.6:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.6:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.5.3:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.5.3:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.5.2:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.5.2:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.5.1:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.5.1:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.5:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.5:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 10, 2018

    Action Type Old Value New Value
    Removed Reference http://www.securityfocus.com/archive/1/archive/1/502546/100/0/threaded [No Types Assigned]
    Removed Reference http://www.securityfocus.com/archive/1/archive/1/502526/100/0/threaded [No Types Assigned]
    Added Reference http://www.securityfocus.com/archive/1/502546/100/0/threaded [No Types Assigned]
    Added Reference http://www.securityfocus.com/archive/1/502526/100/0/threaded [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 29, 2017

    Action Type Old Value New Value
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10044 [No Types Assigned]
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:6449 [No Types Assigned]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6449 [No Types Assigned]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10044 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 17, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/49448 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/49448 [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 30, 2009

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2009-0845 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2009-0845 weaknesses.

CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-23: File Content Injection File Content Injection CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-28: Fuzzing Fuzzing CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies CAPEC-42: MIME Conversion MIME Conversion CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash CAPEC-63: Cross-Site Scripting (XSS) Cross-Site Scripting (XSS) CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-71: Using Unicode Encoding to Bypass Validation Logic Using Unicode Encoding to Bypass Validation Logic CAPEC-72: URL Encoding URL Encoding CAPEC-73: User-Controlled Filename User-Controlled Filename CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic CAPEC-81: Web Server Logs Tampering Web Server Logs Tampering CAPEC-83: XPath Injection XPath Injection CAPEC-85: AJAX Footprinting AJAX Footprinting CAPEC-88: OS Command Injection OS Command Injection CAPEC-101: Server Side Include (SSI) Injection Server Side Include (SSI) Injection CAPEC-104: Cross Zone Scripting Cross Zone Scripting CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection CAPEC-109: Object Relational Mapping Injection Object Relational Mapping Injection CAPEC-110: SQL Injection through SOAP Parameter Tampering SQL Injection through SOAP Parameter Tampering CAPEC-120: Double Encoding Double Encoding CAPEC-135: Format String Injection Format String Injection CAPEC-136: LDAP Injection LDAP Injection CAPEC-153: Input Data Manipulation Input Data Manipulation CAPEC-182: Flash Injection Flash Injection CAPEC-209: XSS Using MIME Type Mismatch XSS Using MIME Type Mismatch CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-250: XML Injection XML Injection CAPEC-261: Fuzzing for garnering other adjacent user/sensitive data Fuzzing for garnering other adjacent user/sensitive data CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding CAPEC-473: Signature Spoof Signature Spoof CAPEC-588: DOM-Based XSS DOM-Based XSS CAPEC-664: Server Side Request Forgery Server Side Request Forgery
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

8.26 }} 3.04%

score

0.94366

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability