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cve[email protected]CVE-2020-27781
HistoryDec 18, 2020 - 9:15 p.m.

CVE-2020-27781

2020-12-1821:15:12
CWE-522
web.nvd.nist.gov
207
8
cve-2020-27781
information security
openstack
cephfs
native ceph
manila
privilege escalation
user credentials
access key
vulnerability

3.6 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:P/A:N

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

6.8 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%

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 โ€œadminโ€ 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 configurations

Vulners
NVD
Node
cephcephRangeโ‰ค16.2.0
VendorProductVersionCPE
cephceph*cpe:2.3:a:ceph:ceph:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "Ceph",
    "versions": [
      {
        "version": "Ceph 16.2.0",
        "status": "affected"
      }
    ]
  }
]

Social References

More

3.6 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:P/A:N

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

6.8 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%