CVE-2009-1893
First published: Tue Jul 07 2009(Updated: )
The configtest function in the Red Hat dhcpd init script for DHCP 3.0.1 in Red Hat Enterprise Linux (RHEL) 3 allows local users to overwrite arbitrary files via a symlink attack on an unspecified temporary file, related to the "dhcpd -t" command.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Enterprise Linux | =3.0 | |
| Red Hat Enterprise Linux | =3.0 | |
| Red Hat Enterprise Linux | =3.0 | |
| Red Hat Enterprise Linux | =3.0 | |
| ISC DHCP Client | =3.0.1-rc1 | |
| ISC DHCP Client | =3.0.1-rc10 | |
| ISC DHCP Client | =3.0.1-rc11 | |
| ISC DHCP Client | =3.0.1-rc12 | |
| ISC DHCP Client | =3.0.1-rc13 | |
| ISC DHCP Client | =3.0.1-rc14 | |
| ISC DHCP Client | =3.0.1-rc2 | |
| ISC DHCP Client | =3.0.1-rc5 | |
| ISC DHCP Client | =3.0.1-rc6 | |
| ISC DHCP Client | =3.0.1-rc7 | |
| ISC DHCP Client | =3.0.1-rc8 | |
| ISC DHCP Client | =3.0.1-rc9 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=510024
- http://secunia.com/advisories/35831
- http://www.redhat.com/support/errata/RHSA-2009-1154.html
- http://securitytracker.com/id?1022554
- http://www.securityfocus.com/bid/35670
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51718
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6440
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11597
- https://rhn.redhat.com/errata/RHSA-2009-1154.html
- https://access.redhat.com/security/cve/CVE-2009-1893
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1893
- http://xforce.iss.net/xforce/xfdb/51718
- https://www.cve.org/CVERecord?id=CVE-2009-1893 https://nvd.nist.gov/vuln/detail/CVE-2009-1893
- https://access.redhat.com/errata/RHSA-2009:1154
- https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2009-1893.json
Frequently Asked Questions
What is the severity of CVE-2009-1893?
CVE-2009-1893 is classified as a high-severity vulnerability due to the potential for local users to overwrite arbitrary files.
How do I fix CVE-2009-1893?
To fix CVE-2009-1893, users should apply the latest patches released by Red Hat for the affected versions of DHCP.
What versions are affected by CVE-2009-1893?
CVE-2009-1893 affects Red Hat Enterprise Linux 3.0 and ISC DHCP Server versions 3.0.1, including various release candidates.
What type of attack is associated with CVE-2009-1893?
CVE-2009-1893 is associated with a symlink attack that allows local users to manipulate temporary files.
Can CVE-2009-1893 be exploited remotely?
No, CVE-2009-1893 can only be exploited locally by authenticated users with access to the system.
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