Security readout for executives and security teams
Plain-English summary
CVE-2021-20346 is an authenticated server-side request forgery issue in IBM Jazz Foundation and related IBM Engineering products. A logged-in attacker could make the vulnerable server send requests it should not, which may expose internal network details or support follow-on attacks. The provided sources rate it medium severity.
Executive priority
Prioritize remediation for exposed engineering lifecycle systems with many authenticated users or access to sensitive internal networks. This is not presented as a critical or actively exploited issue in the provided sources, but SSRF can become more serious when the server can reach privileged internal services.
Technical view
The flaw is SSRF affecting specific IBM Rational and Engineering Lifecycle products. CVSS 3.0 score is 5.4 with network attack vector, low complexity, low privileges required, no user interaction, and low confidentiality and integrity impact. Availability impact is listed as none.
Likely exposure
Exposure is most likely where affected IBM lifecycle engineering platforms are deployed and reachable by authenticated users. Listed affected versions include 6.0.6, 6.0.6.1, 7.0, 7.0.1, 7.0.2, and Engineering Test Management 7.0.0/7.0.1, depending on product.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. IBM describes an authenticated attacker sending unauthorized requests from the system, potentially enabling network enumeration or facilitating other attacks. Treat internet-facing or broadly accessible authenticated deployments as higher priority.
Researcher notes
Key constraints are authenticated access, low attack complexity, and no user interaction. Impact is documented as potential network enumeration or facilitation of other attacks, with low confidentiality and integrity impact and no availability impact. Sources do not provide exploit details, affected endpoints, or precise fixed versions in the bundle.
Mitigation direction
- Check IBM advisory 6457739 for the applicable official remediation or fixed level.
- Patch or upgrade affected IBM products according to IBM guidance.
- Restrict outbound network access from affected application servers to required destinations.
- Limit authenticated access to trusted users and identity providers.
- Monitor application and proxy logs for unusual server-initiated internal requests.
Validation and detection
- Inventory IBM Jazz Foundation and Engineering product names and versions.
- Compare deployed versions against the affected product list in the source bundle.
- Confirm whether IBM advisory remediation is installed for each affected deployment.
- Review access controls for who can authenticate to affected applications.
- Check outbound firewall, proxy, and application logs for suspicious internal request patterns.
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.
Cloud metadata behavior lookup
The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-20346 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
- 5.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/C:L/S:U/UI:N/A:N/AC:L/I:L/AV:N/PR:L/RC:C/RL:O/E:U
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/C:L/S:U/UI:N/A:N/AC:L/I:L/AV:N/PR:L/RC:C/RL:O/E:U2.82.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.4MediumVector: CVSS:3.0/C:L/S:U/UI:N/A:N/AC:L/I:L/AV:N/PR:L/RC:C/RL:O/E:U
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/6457739CVE reference · x_refsource_CONFIRM
- ibm-jazz-cve202120346-ssrf (194595)CVE reference · vdb-entry, x_refsource_XF
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.