Security readout for executives and security teams
Plain-English summary
CVE-2019-3681 affects SUSE/openSUSE osc, a development tool. A remote attacker who can alter downloaded packages could make osc overwrite arbitrary files. Business risk is highest on developer or build systems where vulnerable osc versions process package downloads.
Executive priority
Prioritize remediation on build and developer systems because arbitrary file overwrite can affect confidentiality, integrity, and availability. This is high severity, but available evidence does not support emergency active-exploitation handling.
Technical view
The issue is CWE-73, external control of filename or path. Vulnerable osc versions stored downloaded supposed RPMs using network-controlled filesystem paths, allowing arbitrary file overwrite. CVSS 3.1 is 7.5 high with network attack vector, high complexity, no privileges, and required user interaction.
Likely exposure
Exposure is likely limited to systems running affected osc versions on listed SUSE Linux Enterprise development modules, SDK releases, openSUSE Leap 15.1, or openSUSE Factory. Developer workstations and build automation using osc are the main candidates.
Exploitation context
The source bundle does not show known active exploitation, and KEV is false. CVSS indicates user interaction and high attack complexity. The attacker condition is specific: they must be able to change downloaded packages.
Researcher notes
Patch-level evidence is limited to the CVE description and SUSE Bugzilla reference. Validate affected versions precisely, then assess write impact based on the account running osc and the files reachable during package download workflows.
Mitigation direction
- Upgrade osc to the fixed vendor versions listed for the affected SUSE or openSUSE release.
- Review SUSE guidance for release-specific package names, backports, and update channels.
- Avoid using vulnerable osc with untrusted or network-controllable package sources before updating.
- Run osc with least necessary filesystem privileges on developer and build systems.
Validation and detection
- Inventory SUSE and openSUSE hosts with osc installed.
- Compare installed osc versions against the fixed thresholds in the CVE description.
- Check developer images and build workers that invoke osc downloads.
- Confirm updated packages came from trusted SUSE or openSUSE channels.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-73: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2019-3681 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H1.65.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.suse.com/show_bug.cgi?id=1122675CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.