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OpenSSH Two Security Issues
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Secunia Advisory:
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SA16686
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Release Date:
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2005-09-02
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Last Update:
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2005-09-13
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Critical:
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Less critical
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Impact:
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Security Bypass
Privilege escalation
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | OpenSSH 3.x
OpenSSH 4.x
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| | CVE reference: | CVE-2005-2797 (Secunia mirror)
CVE-2005-2798 (Secunia mirror)
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Description:
Two security issues have been reported in OpenSSH, which can be exploited malicious users to gain escalated privileges or bypass certain security restrictions.
1) An error in handling dynamic port forwardings when no listen address is specified, can cause "GatewayPorts" to be incorrectly activated.
The security issue is reportedly introduced in version 4.0.
2) An error in handling GSSAPI credential delegation can allow a user, who did not login using GSSAPI authentication, to be delegated with GSSAPI credentials.
Successful exploitation requires that "GSSAPIDelegateCredentials" is enabled.
Solution:
Update to version 4.2p1.
ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/
Provided and/or discovered by:
2) Paul Moore
Changelog:
2005-09-08: Added CVE reference.
2005-09-13: Added CVE reference.
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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12 Related Secunia Security Advisories, displaying 10
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1. OpenSSH "X11UseLocalhost" X11 Forwarding Security Issue
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2. OpenSSH ForceCommand Bypass Weakness
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3. OpenSSH X11 Forwarding Information Disclosure Vulnerability
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4. OpenSSH Privilege Separation Monitor Weakness
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5. OpenSSH Signal Handling Vulnerability and User Enumeration Weakness
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6. OpenSSH Identical Blocks Denial of Service Vulnerability
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7. OpenSSH scp Command Line Shell Command Injection
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8. OpenSSH PAM implementation Vulnerability
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9. OpenSSH "buffer_append_space()" Buffer Management Vulnerability
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10. OpenSSH IP address restriction bypass
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