Vulnerability Details : CVE-2019-11328
An issue was discovered in Singularity 3.1.0 to 3.2.0-rc2, a malicious user with local/network access to the host system (e.g. ssh) could exploit this vulnerability due to insecure permissions allowing a user to edit files within `/run/singularity/instances/sing/<user>/<instance>`. The manipulation of those files can change the behavior of the starter-suid program when instances are joined resulting in potential privilege escalation on the host.
Vulnerability category: Gain privilege
Products affected by CVE-2019-11328
- cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:backports:sle-15:sp1:*:*:*:*:*:*
- cpe:2.3:o:opensuse:backports:sle-15:-:*:*:*:*:*:*
- cpe:2.3:a:sylabs:singularity:*:*:*:*:*:*:*:*
- cpe:2.3:a:sylabs:singularity:3.2.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:sylabs:singularity:3.2.0:-:*:*:*:*:*:*
- cpe:2.3:a:sylabs:singularity:3.2.0:rc1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-11328
0.19%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 57 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-11328
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.0
|
HIGH | AV:N/AC:L/Au:S/C:C/I:C/A:C |
8.0
|
10.0
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2019-11328
-
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-11328
-
http://www.openwall.com/lists/oss-security/2019/05/16/1
oss-security - Singularity 3.1.0: CVE-2019-11328: namespace privilege escalation and arbitrary file corruptionExploit;Mailing List;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00028.html
[security-announce] openSUSE-SU-2019:2288-1: moderate: Security update fThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5O3TPL5OOTIZEI4H6IQBCCISBARJ6WL3/
[SECURITY] Fedora 28 Update: singularity-3.1.1-1.1.fc28 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LIHV7DSEVTB5SUPEZ2UXGS3Q6WMEQSO2/
[SECURITY] Fedora 29 Update: singularity-3.1.1-1.1.fc29 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LNU5BUHFOTYUZVHFUSX2VG4S3RCPUEMA/
[SECURITY] Fedora 30 Update: singularity-3.1.1-1.1.fc30 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.html
[security-announce] openSUSE-SU-2020:1037-1: important: Security updateThird Party Advisory
-
https://github.com/sylabs/singularity/releases/tag/v3.2.0
Release Singularity 3.2.0 · sylabs/singularity · GitHubRelease Notes
-
http://www.securityfocus.com/bid/108360
Singularity CVE-2019-11328 Insecure Permissions Local Privilege Escalation VulnerabilityBroken Link
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