Apache SpamAssassin up to 3.4.1 PDFInfo Plugin code injection

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Apache SpamAssassin up to 3.4.1. It has been classified as critical. This affects an unknown function of the component PDFInfo Plugin. Performing a manipulation results in code injection. This vulnerability was named CVE-2018-11780. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apache SpamAssassin up to 3.4.1 (Anti-Spam Software). It has been classified as critical. This affects an unknown code block of the component PDFInfo Plugin. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A potential Remote Code Execution bug exists with the PDFInfo plugin in Apache SpamAssassin before 3.4.2.

The bug was discovered 09/16/2018. The weakness was presented 09/17/2018 by Security Team with cPanel (Website). It is possible to read the advisory at lists.apache.org. This vulnerability is uniquely identified as CVE-2018-11780 since 06/05/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 117840 (Fedora 27 : spamassassin (2018-6ed251c42b)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197296 (Ubuntu Security Notification for Spamassassin Vulnerabilities (USN-3811-1)).

Upgrading to version 3.4.2 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (117840) and SecurityFocus (BID 105373†). See VDB-124144 and VDB-124134 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 117840
Nessus Name: Fedora 27 : spamassassin (2018-6ed251c42b)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: SpamAssassin 3.4.2

Timelineinfo

06/05/2018 🔍
09/16/2018 +103 days 🔍
09/17/2018 +0 days 🔍
09/17/2018 +0 days 🔍
09/17/2018 +0 days 🔍
09/18/2018 +1 days 🔍
09/29/2018 +11 days 🔍
10/01/2018 +2 days 🔍
05/16/2023 +1688 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: FEDORA-2018-6ed251c42b
Researcher: Security Team
Organization: cPanel
Status: Confirmed

CVE: CVE-2018-11780 (🔍)
GCVE (CVE): GCVE-0-2018-11780
GCVE (VulDB): GCVE-100-124143
SecurityFocus: 105373 - Apache SpamAssassin CVE-2018-11780 Remote Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 09/18/2018 07:13
Updated: 05/16/2023 15:05
Changes: 09/18/2018 07:13 (76), 03/24/2020 15:15 (6), 05/16/2023 15:01 (4), 05/16/2023 15:05 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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