Improper Privilege Management in Concrete CMS
The advisory, in context
Privilege escalation from Editor to Admin using Groups in Concrete CMS versions 8.5.6 and below. If a group is granted "view" permissions on the bulkupdate page, then users in that group can escalate to being an administrator with a specially crafted curl. Fixed by adding a check for group permissions before allowing a group to be moved.
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
Earlier releases before 8.5.7
Fixed in 8.5.7
24 explicitly affected versions
8.2.0, 8.2.0RC2, 8.2.1, 8.3.0, 8.3.1, 8.3.2, 8.4.0, 8.4.0RC3, 8.4.0RC4, 8.4.1, 8.4.2, 8.4.3, 8.4.4, 8.4.5, 8.5.0, 8.5.0RC1, 8.5.0RC2, 8.5.1, 8.5.2, 8.5.3, 8.5.4, 8.5.5, 8.5.6, 8.5.6RC1
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.5.7"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.2.0",
"8.2.0RC2",
"8.2.1",
"8.3.0",
"8.3.1",
"8.3.2",
"8.4.0",
"8.4.0RC3",
"8.4.0RC4",
"8.4.1",
"8.4.2",
"8.4.3",
"8.4.4",
"8.4.5",
"8.5.0",
"8.5.0RC1",
"8.5.0RC2",
"8.5.1",
"8.5.2",
"8.5.3",
"8.5.4",
"8.5.5",
"8.5.6",
"8.5.6RC1"
]
}