Oracle Solaris Privilege Escalation Vulnerability

CheckOps priority index

5.7/10 Patch within 7 days

Severity8.8

Probability1.4

Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 13.5% +0.1 pts in 7 days

CVSS 3.1 8.8 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:

Exploited for 1,623 days 25 May 2022

CISA due date 15 Jun 2022 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

KEV catalog (CISA)25 May 2022
Exploited in EUVD (ENISA)25 May 2022
Used by ransomwareno
EPSS above 10 %13.5%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

Vulnerability in the Oracle Solaris product of Oracle Systems (component: XScreenSaver). The supported version that is affected is 11. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. While the vulnerability is in Oracle Solaris, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Solaris. CVSS 3.0 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).

Affected products

Solaris Operating SystemSolaris

Affected versions

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

16 Oct 2019
Published
25 May 2022
Exploitation reported (ENISA)
25 May 2022
Added to the KEV catalog
15 Jun 2022
CISA remediation due date
01 Nov 2026
EPSS peak: 13.5%

References

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