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Vulnerability · Published Dec 18, 2020 · Assigned by redhat

CVE-2020-27781

High 7.1

In plain English

A high-severity security flaw in Ceph. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.1High
Exploit odds (30 days)0.3%top 77.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation. An Open Stack Manila user can request access to a share to an arbitrary cephx user, including existing users. The access key is retrieved via the interface drivers. Then, all users of the requesting OpenStack project can view the access key. This enables the attacker to target any resource that the user has access to. This can be done to even "admin" users, compromising the ceph administrator. This flaw affects Ceph versions prior to 14.2.16, 15.x prior to 15.2.8, and 16.x prior to 16.2.0.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12ceph14.2.16-1DEBIAN-CVE-2020-27781
Debian:13ceph14.2.16-1DEBIAN-CVE-2020-27781
Debian:14ceph14.2.16-1DEBIAN-CVE-2020-27781

Affected products (as reported)

VendorProductVersions
n/a Ceph Ceph 16.2.0

Weakness: CWE-522

References