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Gentoo Linux Security Advisory GLSA 200703-20 |
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http://security.gentoo.org/ |
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Severity: Low |
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Title: LSAT: Insecure temporary file creation |
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Date: March 18, 2007 |
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Bugs: #159542 |
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ID: 200703-20 |
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Synopsis |
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======== |
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|
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LSAT insecurely creates temporary files which can lead to symlink |
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attacks allowing a local user to overwrite arbitrary files. |
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Background |
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========== |
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|
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The Linux Security Auditing Tool (LSAT) is a post install security |
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auditor which checks many system configurations and local network |
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settings on the system for common security or configuration errors and |
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for packages that are not needed. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 app-admin/lsat <= 0.9.2 Vulnerable! |
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------------------------------------------------------------------- |
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NOTE: Certain packages are still vulnerable. Users should migrate |
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to another package if one is available or wait for the |
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existing packages to be marked stable by their |
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architecture maintainers. |
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Description |
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=========== |
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|
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LSAT insecurely writes in /tmp with a predictable filename. |
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Impact |
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====== |
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A local attacker could create symbolic links in the temporary files |
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directory, pointing to a valid file somewhere on the filesystem. When |
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the LSAT script is executed, this would result in the file being |
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overwritten with the rights of the user running the software, which |
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could be the root user. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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Since LSAT is not actively maintained anymore, this package has been |
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masked. All LSAT users are advised to unmerge it. |
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# emerge --ask --unmerge "app-admin/lsat" |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200703-20.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2007 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.5 |
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