apcd: symlink attack in apcd

    Date01 Feb 2000
    CategoryDebian
    2599
    Posted ByLinuxSecurity Advisories
    The apcd package as shipped in Debian GNU/Linux 2.1 is vulnerable to a symlink attack. If the apcd process gets a SIGUSR1 signal it will dump its status to /tmp/upsstat. However this file is not opened safely, which makes it a good target for a symlink attack. This has been fixed in version 0.6a.nr-4slink1. We recommend you upgrade your apcd package immediately.
    Date Reported:
    01 Feb 2000
    Affected Packages:
    apcd
    Vulnerable:
    Yes
    For more information:
    The apcd package as shipped in Debian GNU/Linux 2.1 is vulnerable to a symlink attack. If the apcd process gets a SIGUSR1 signal it will dump its status to /tmp/upsstat. However this file is not opened safely, which makes it a good target for a symlink attack.

    This has been fixed in version 0.6a.nr-4slink1. We recommend you upgrade your apcd package immediately.

    Fixed in:
    source:
    http://security.debian.org/dists/stable/updates/source/apcd_0.6a.nr-4slink1.diff.gz
    http://security.debian.org/dists/stable/updates/source/apcd_0.6a.nr-4slink1.dsc
    http://security.debian.org/dists/stable/updates/source/apcd_0.6a.nr.orig.tar.gz
    alpha:
    http://security.debian.org/dists/stable/updates/binary-alpha/apcd_0.6a.nr-4slink1_alpha.deb
    i386:
    http://security.debian.org/dists/stable/updates/binary-i386/apcd_0.6a.nr-4slink1_i386.deb
    m68k:
    http://security.debian.org/dists/stable/updates/binary-m68k/apcd_0.6a.nr-4slink1_m68k.deb
    sparc:
    http://security.debian.org/dists/stable/updates/binary-sparc/apcd_0.6a.nr-4slink1_sparc.deb
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the articles on LinuxSecurity?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/24-what-do-you-think-of-the-quality-of-the-articles-on-linuxsecurity?task=poll.vote&format=json
    24
    radio
    [{"id":"87","title":"Excellent, don't change a thing!","votes":"25","type":"x","order":"1","pct":54.35,"resources":[]},{"id":"88","title":"Should be more technical","votes":"5","type":"x","order":"2","pct":10.87,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"16","type":"x","order":"3","pct":34.78,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.