Package: salome
Version: 5.1.3-9
Severity: grave
Tags: security
User: [email protected]
Usertags: ldpath
Hello,
During a review of the Debian archive, I've found your package to
contain a script that can be abused by an attacker to execute arbitrary
code.
The vulnerability is introduced by an insecure change to
LD_LIBRARY_PATH, an environment variable used by ld.so(8) to look for
libraries on a directory other than the standard paths.
Vulnerable code follows:
/usr/bin/runSalome line 28:
export LD_LIBRARY_PATH=${prefix}/lib:${libdir}:$LD_LIBRARY_PATH
/usr/bin/runTestMedCorba line 29:
export LD_LIBRARY_PATH=$MED_ROOT_DIR/lib/salome:${LD_LIBRARY_PATH}
/usr/bin/runTestMedCorba line 37:
export LD_LIBRARY_PATH=$MED_ROOT_DIR/lib/salome:${LD_LIBRARY_PATH}
Possibly vulnerable too:
/usr/lib/salome/bin/runLightSalome line 139:
export LD_LIBRARY_PATH=${MY_LD_LIBRARY_PATH}:${LD_LIBRARY_PATH}
/usr/lib/salome/bin/hxx2salome line 329:
echo -e "setenv LD_LIBRARY_PATH
\${${CLASS_NAME}CPP_ROOT_DIR}${lib_dir#${CPP_ROOT_DIR}}:\${LD_LIBRARY_PATH}" >>
${ENVIRON_FILE}
/usr/lib/salome/bin/hxx2salome line 351:
echo -e "export
LD_LIBRARY_PATH=\${${CLASS_NAME}CPP_ROOT_DIR}${lib_dir#${CPP_ROOT_DIR}}:\${LD_LIBRARY_PATH}"
\
>> ${ENVIRON_FILE}
When there's an empty item on the colon-separated list of
LD_LIBRARY_PATH, ld.so treats it as '.' (i.e. CWD/$PWD.)
If the given script is executed from a directory where a potential,
local, attacker can write files to, there's a chance to exploit this
bug.
This vulnerability has been assigned the CVE id CVE-2010-3377. Please make sure
you mention it when forwarding this report to upstream and when fixing
this bug (everywhere: upstream and here at Debian.)
[0] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3377
[1] http://security-tracker.debian.org/tracker/CVE-2010-3377
Sincerely,
Raphael Geissert
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