KDE KGet metalink "name" Directory Traversal Vulnerability

2010-05-23 / 2010-05-24
Risk: Low
Local: No
Remote: Yes
CWE: CWE-22


Ogólna skala CVSS: 5.8/10
Znaczenie: 4.9/10
Łatwość wykorzystania: 8.6/10
Wymagany dostęp: Zdalny
Złożoność ataku: Średnia
Autoryzacja: Nie wymagana
Wpływ na poufność: Brak
Wpływ na integralność: Częściowy
Wpływ na dostępność: Częściowy

====================================================================== Secunia Research 13/05/2010 - KDE KGet metalink "name" Directory Traversal Vulnerability - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Vendor's Description of Software.....................................3 Description of Vulnerability.........................................4 Solution.............................................................5 Time Table...........................................................6 Credits..............................................................7 References...........................................................8 About Secunia........................................................9 Verification........................................................10 ====================================================================== 1) Affected Software * KDE 4.4.2 (KGet 2.4.2) NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Moderately critical Impact: System access Where: Remote ====================================================================== 3) Vendor's Description of Software "KGet is the download manager for KDE". Product Link: http://www.kde.org/applications/internet/kget/ ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in KDE, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to KGet not properly sanitising the "name" attribute of the "file" element of metalink files before using it to download files. If a user is tricked into downloading from a specially crafted metalink file, this can be exploited to download files to directories outside of the intended download directory via directory traversal attacks. ====================================================================== 5) Solution Apply patches for the 4.3 and 4.4 branches committed to the KDE Subversion repository. ====================================================================== 6) Time Table 30/04/2010 - Vendor notified. 02/05/2010 - Vendor response. 13/05/2010 - Public disclosure. ====================================================================== 7) Credits Discovered by Stefan Cornelius, Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2010-1000 for the vulnerability. ====================================================================== 9) About Secunia Secunia offers vulnerability management solutions to corporate customers with verified and reliable vulnerability intelligence relevant to their specific system configuration: http://secunia.com/advisories/business_solutions/ Secunia also provides a publicly accessible and comprehensive advisory database as a service to the security community and private individuals, who are interested in or concerned about IT-security. http://secunia.com/advisories/ Secunia believes that it is important to support the community and to do active vulnerability research in order to aid improving the security and reliability of software in general: http://secunia.com/secunia_research/ Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: http://secunia.com/corporate/jobs/ Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/advisories/mailing_lists/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2010-69/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================

Referencje:

http://xforce.iss.net/xforce/xfdb/58628
http://www.vupen.com/english/advisories/2010/1144
http://www.vupen.com/english/advisories/2010/1142
http://www.ubuntu.com/usn/USN-938-1
http://www.securityfocus.com/bid/40141
http://www.securityfocus.com/archive/1/archive/1/511294/100/0/threaded
http://www.securityfocus.com/archive/1/archive/1/511281/100/0/threaded
http://www.mandriva.com/security/advisories?name=MDVSA-2010:098
http://www.kde.org/info/security/advisory-20100513-1.txt
http://securitytracker.com/id?1023984
http://secunia.com/secunia_research/2010-69/
http://secunia.com/advisories/39787
http://secunia.com/advisories/39528
http://osvdb.org/64690
http://marc.info/?l=oss-security&m=127378789518426&w=2


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