Medium: sssd

Issue Overview:

Unsanitized input when searching in local cache database
It was found that sssd’s sysdb_search_user_by_upn_res() function did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it. (CVE-2017-12173)

Affected Packages:

sssd

Issue Correction:
Run yum update sssd to update your system.

New Packages:

i686:  
    sssd-client-1.15.2-50.34.amzn1.i686  
    sssd-ldap-1.15.2-50.34.amzn1.i686  
    sssd-debuginfo-1.15.2-50.34.amzn1.i686  
    libsss_autofs-1.15.2-50.34.amzn1.i686  
    python27-libipa_hbac-1.15.2-50.34.amzn1.i686  
    sssd-tools-1.15.2-50.34.amzn1.i686  
    python27-sss-1.15.2-50.34.amzn1.i686  
    sssd-dbus-1.15.2-50.34.amzn1.i686  
    libsss_nss_idmap-devel-1.15.2-50.34.amzn1.i686  
    libsss_idmap-devel-1.15.2-50.34.amzn1.i686  
    libsss_idmap-1.15.2-50.34.amzn1.i686  
    sssd-ipa-1.15.2-50.34.amzn1.i686  
    libsss_simpleifp-1.15.2-50.34.amzn1.i686  
    python27-libsss_nss_idmap-1.15.2-50.34.amzn1.i686  
    sssd-common-1.15.2-50.34.amzn1.i686  
    sssd-libwbclient-1.15.2-50.34.amzn1.i686  
    sssd-winbind-idmap-1.15.2-50.34.amzn1.i686  
    libsss_certmap-1.15.2-50.34.amzn1.i686  
    libsss_nss_idmap-1.15.2-50.34.amzn1.i686  
    sssd-krb5-1.15.2-50.34.amzn1.i686  
    sssd-1.15.2-50.34.amzn1.i686  
    libsss_certmap-devel-1.15.2-50.34.amzn1.i686  
    python27-sss-murmur-1.15.2-50.34.amzn1.i686  
    libipa_hbac-1.15.2-50.34.amzn1.i686  
    libipa_hbac-devel-1.15.2-50.34.amzn1.i686  
    sssd-ad-1.15.2-50.34.amzn1.i686  
    sssd-krb5-common-1.15.2-50.34.amzn1.i686  
    sssd-libwbclient-devel-1.15.2-50.34.amzn1.i686  
    libsss_sudo-1.15.2-50.34.amzn1.i686  
    sssd-common-pac-1.15.2-50.34.amzn1.i686  
    sssd-proxy-1.15.2-50.34.amzn1.i686  
    libsss_simpleifp-devel-1.15.2-50.34.amzn1.i686  
  
noarch:  
    python27-sssdconfig-1.15.2-50.34.amzn1.noarch  
  
src:  
    sssd-1.15.2-50.34.amzn1.src  
  
x86_64:  
    sssd-krb5-1.15.2-50.34.amzn1.x86_64  
    sssd-proxy-1.15.2-50.34.amzn1.x86_64  
    libsss_simpleifp-devel-1.15.2-50.34.amzn1.x86_64  
    sssd-krb5-common-1.15.2-50.34.amzn1.x86_64  
    libsss_idmap-devel-1.15.2-50.34.amzn1.x86_64  
    libsss_autofs-1.15.2-50.34.amzn1.x86_64  
    sssd-common-pac-1.15.2-50.34.amzn1.x86_64  
    libsss_nss_idmap-devel-1.15.2-50.34.amzn1.x86_64  
    sssd-debuginfo-1.15.2-50.34.amzn1.x86_64  
    python27-libipa_hbac-1.15.2-50.34.amzn1.x86_64  
    sssd-ad-1.15.2-50.34.amzn1.x86_64  
    sssd-common-1.15.2-50.34.amzn1.x86_64  
    python27-sss-murmur-1.15.2-50.34.amzn1.x86_64  
    sssd-winbind-idmap-1.15.2-50.34.amzn1.x86_64  
    sssd-1.15.2-50.34.amzn1.x86_64  
    python27-sss-1.15.2-50.34.amzn1.x86_64  
    sssd-libwbclient-1.15.2-50.34.amzn1.x86_64  
    sssd-dbus-1.15.2-50.34.amzn1.x86_64  
    libsss_certmap-1.15.2-50.34.amzn1.x86_64  
    libsss_nss_idmap-1.15.2-50.34.amzn1.x86_64  
    libipa_hbac-devel-1.15.2-50.34.amzn1.x86_64  
    libsss_certmap-devel-1.15.2-50.34.amzn1.x86_64  
    libsss_sudo-1.15.2-50.34.amzn1.x86_64  
    sssd-libwbclient-devel-1.15.2-50.34.amzn1.x86_64  
    python27-libsss_nss_idmap-1.15.2-50.34.amzn1.x86_64  
    libipa_hbac-1.15.2-50.34.amzn1.x86_64  
    libsss_simpleifp-1.15.2-50.34.amzn1.x86_64  
    sssd-ipa-1.15.2-50.34.amzn1.x86_64  
    sssd-client-1.15.2-50.34.amzn1.x86_64  
    sssd-ldap-1.15.2-50.34.amzn1.x86_64  
    libsss_idmap-1.15.2-50.34.amzn1.x86_64  
    sssd-tools-1.15.2-50.34.amzn1.x86_64  

Additional References

Red Hat: CVE-2017-12173

Mitre: CVE-2017-12173