Sophos UTM: Insertion of Sensitive Information into Log File
CVE-2022-0652 is a high-severity insertion of sensitive information into log file vulnerability in Sophos UTM from Sophos, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 9.710 as the first without the flaw, so updating Sophos UTM to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.19% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Sophos UTM to 9.710 or a later version.
- Update Unified Threat Management to 9.710 or a later version.
- Read the advisory on sophos.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Sophos | Sophos UTM | before 9.710 | 9.710 |
| Sophos | Unified Threat Management | before 9.710 | 9.710 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 3.3 | Low | CNA (sophos.com) |
| CVSS 3.1 | 7.8 | High | NVD |
| CVSS 2.0 | 2.1 | Low | NVD |
Official description
Confd log files contain local users', including root’s, SHA512crypt password hashes with insecure access permissions. This allows a local attacker to attempt off-line brute-force attacks against these password hashes in Sophos UTM before version 9.710.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insertion of Sensitive Information into Log File
The product writes sensitive information to a log file.
How developers prevent this class of flaw
- Consider seriously the sensitivity of the information written into log files. Do not write secrets into the log files.
- Remove debug log files before deploying the application into production.
- Protect log files against unauthorized read/write.
More Insertion of Sensitive Information into Log File vulnerabilities (CWE-532)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Sophos UTM
- 8.8 High severity
Recent Insertion of Sensitive Information into Log File vulnerabilities
- 7.5 High severity
- 7.5 High severity
Spotted an error? Tell us.