Detections
Analytics
Ubuntu 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : openldap, openldap2.3 vulnerabilities (USN-1100-1)
medium Nessus Plugin ID 53257
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Synopsis
The remote Ubuntu host is missing one or more security-related patches.Description
It was discovered that OpenLDAP did not properly check forwarded authentication failures when using a slave server and chain overlay.If OpenLDAP were configured in this manner, an attacker could bypass authentication checks by sending an invalid password to a slave server. (CVE-2011-1024)
It was discovered that OpenLDAP did not properly perform authentication checks to the rootdn when using the back-ndb backend.
An attacker could exploit this to access the directory by sending an arbitrary password. Ubuntu does not ship OpenLDAP with back-ndb support by default. This issue did not affect Ubuntu 8.04 LTS.
(CVE-2011-1025)
It was discovered that OpenLDAP did not properly validate modrdn requests. An unauthenticated remote user could use this to cause a denial of service via application crash. (CVE-2011-1081).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 53257
File Name: ubuntu_USN-1100-1.nasl
Version: 1.12
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 4/1/2011
Updated: 9/19/2019
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.5
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:9.10, p-cpe:/a:canonical:ubuntu_linux:libldap-2.4-2-dbg, p-cpe:/a:canonical:ubuntu_linux:ldap-utils, p-cpe:/a:canonical:ubuntu_linux:slapd-dbg, p-cpe:/a:canonical:ubuntu_linux:libldap2-dev, p-cpe:/a:canonical:ubuntu_linux:libldap-2.4-2, p-cpe:/a:canonical:ubuntu_linux:slapd, cpe:/o:canonical:ubuntu_linux:8.04:-:lts
Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/31/2011
Vulnerability Publication Date: 3/19/2011
Reference Information
CVE: CVE-2011-1024, CVE-2011-1025, CVE-2011-1081
USN: 1100-1