CVE-2020-35123 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 22 Dec 2020, 17:26 UTC Published: 17 Dec 2020, 04:15 UTC

CVE-2020-35123
Vulnerability Scoring

6.5
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: NETWORK
  • Privileges Required: Low Impact
  • Scope: UNCHANGED
  • User Interaction: NONE

CIA Impact Definition

  • Confidentiality: HIGH IMPACT
  • Integrity:
  • Availability:

CVE-2020-35123 Vulnerability Summary

In Zimbra Collaboration Suite Network Edition versions < 9.0.0 P10 and 8.8.15 P17, there exists an XXE vulnerability in the saml consumer store extension, which is vulnerable to XXE attacks. This has been fixed in Zimbra Collaboration Suite Network edition 9.0.0 Patch 10 and 8.8.15 Patch 17.

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-35123. It helps visualize the difficulty level and privilege requirements needed to exploit this vulnerability, providing a quick assessment of its exploitation feasibility.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-35123, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

Impact Analysis

Below is the Impact Analysis for CVE-2020-35123, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.094% (probability of exploit)

EPSS Percentile: 41.75% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 58.25% of others.

CVE-2020-35123 Detailed Information and External References

References

CWE

CWE-611

CAPEC

  • Data Serialization External Entities Blowup CAPEC-221 This attack takes advantage of the entity replacement property of certain data serialization languages (e.g., XML, YAML, etc.) where the value of the replacement is a URI. A well-crafted file could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.

Vulnerable Configurations

  • cpe:2.3:a:zimbra:collaboration:8.8.0:beta1:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.2:*:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.2:*:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.3:*:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.3:*:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.4:*:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.4:*:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.6:*:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.6:*:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.7:*:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.7:*:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:-:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:-:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p1:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p1:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p10:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p10:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p2:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p2:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p3:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p3:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p4:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p4:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p5:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p5:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p6:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p6:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p7:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p7:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p8:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p8:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.8:p9:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.8:p9:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:-:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:-:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p1:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p1:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p10:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p10:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p2:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p2:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p3:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p3:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p4:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p4:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p5:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p5:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p6:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p6:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p7:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p7:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p8:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p8:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.9:p9:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.9:p9:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.10:-:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.10:-:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.10:p1:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.10:p1:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.10:p2:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.10:p2:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.10:p3:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.10:p3:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.10:p4:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.10:p4:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.10:p5:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.10:p5:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.10:p6:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.10:p6:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.10:p7:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.10:p7:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.10:p8:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.10:p8:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.11:-:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.11:-:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.11:p1:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.11:p1:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.11:p2:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.11:p2:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.11:p3:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.11:p3:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.11:p4:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.11:p4:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.11:p5:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.11:p5:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.12:-:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.12:-:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.12:p1:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.12:p1:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.12:p2:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.12:p2:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.12:p3:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.12:p3:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.12:p4:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.12:p4:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.12:p5:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.12:p5:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.12:p6:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.12:p6:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:-:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:-:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p1:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p1:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p10:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p10:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p11:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p11:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p12:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p12:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p13:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p13:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p14:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p14:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p15:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p15:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p16:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p16:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p2:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p2:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p3:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p3:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p4:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p4:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p5:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p5:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p6:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p6:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p7:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p7:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p8:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p8:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p9:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:8.8.15:p9:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p1:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:p1:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p2:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:p2:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p3:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:p3:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p4:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:p4:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p5:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:p5:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p6:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:p6:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p7:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:p7:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p8:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:p8:*:*:*:*:*:*
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p9:*:*:*:*:*:*
    cpe:2.3:a:zimbra:collaboration:9.0.0:p9:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

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