Security readout for executives and security teams
Plain-English summary
CVE-2022-3301 affects rdiffweb before 2.4.8. An exception-handling cleanup flaw may leave application state improperly cleaned up and allow limited integrity impact. The CVSS score is medium at 4.3, and user interaction is required. The provided sources do not show active exploitation.
Executive priority
Treat this as a routine medium-priority remediation item. It does not justify emergency response based on the supplied evidence, but exposed or business-critical rdiffweb deployments should be updated promptly.
Technical view
The CVE maps to CWE-460: improper cleanup on thrown exception in ikus060/rdiffweb before 2.4.8. The CVSS vector indicates network reachability, low attack complexity, no privileges required, required user interaction, unchanged scope, no confidentiality or availability impact, and low integrity impact.
Likely exposure
Exposure is limited to deployments running ikus060/rdiffweb versions earlier than 2.4.8. The source bundle does not identify affected operating systems, packaged distributions, hosted services, or specific configurations.
Exploitation context
The CVSS vector requires user interaction and shows only low integrity impact. The CVE is not listed as KEV, and the provided sources do not cite public active exploitation or exploit availability.
Researcher notes
Evidence is sparse: the CVE record gives the weakness class, version boundary, CVSS vector, huntr advisory, and fixing commit. It does not describe the precise failed cleanup path in the supplied bundle, so validation should focus on version state and vendor patch review.
Mitigation direction
- Upgrade rdiffweb to version 2.4.8 or later.
- Review the linked upstream commit and vendor guidance before production rollout.
- Prioritize internet-exposed rdiffweb instances first.
- Restrict rdiffweb access to trusted users while remediation is pending.
- Monitor for unusual exception patterns in rdiffweb logs.
Validation and detection
- Inventory all rdiffweb instances and record installed versions.
- Flag any instance running earlier than 2.4.8.
- Confirm upgraded instances report version 2.4.8 or later.
- Review recent logs for unexpected exception-driven workflow failures.
- Verify normal backup browsing and restore workflows after updating.
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-460: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2022-3301 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
- Medium
- CVSS
- 4.3 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
4.3MediumVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://huntr.dev/bounties/d3bf1e5d-055a-44b8-8d60-54ab966ed63aCVE reference · x_refsource_CONFIRM
- https://github.com/ikus060/rdiffweb/commit/5ac38b2a75becbab9f948bd5e37ecbcd9f0b362eCVE reference · x_refsource_MISC
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.
Improper Cleanup on Thrown Exception
Improper Cleanup on Thrown Exception represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.