CVE-2018-9846

In Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled "_uid" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a %0d%0a sequence. NOTE: this is less easily exploitable in 1.3.4 and later because of a Same Origin Policy protection mechanism.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/roundcube/roundcubemail/issues/6238	Patch Third Party Advisory
https://github.com/roundcube/roundcubemail/issues/6229	Patch Third Party Advisory
https://medium.com/@ndrbasi/cve-2018-9846-roundcube-303097048b0a	Exploit Third Party Advisory
https://www.debian.org/security/2018/dsa-4181	Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2018-04-07 14:29

Updated : 2018-05-24 10:12

NVD link : CVE-2018-9846

Mitre link : CVE-2018-9846

JSON object : View

CWE

CWE-20

Improper Input Validation

Advertisement

Products Affected

debian

debian_linux

roundcube

webmail

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/roundcube/roundcubemail/issues/6238", "name": "https://github.com/roundcube/roundcubemail/issues/6238", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/roundcube/roundcubemail/issues/6229", "name": "https://github.com/roundcube/roundcubemail/issues/6229", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://medium.com/@ndrbasi/cve-2018-9846-roundcube-303097048b0a", "name": "https://medium.com/@ndrbasi/cve-2018-9846-roundcube-303097048b0a", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.debian.org/security/2018/dsa-4181", "name": "DSA-4181", "tags": ["Third Party Advisory"], "refsource": "DEBIAN"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "In Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled \"_uid\" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a %0d%0a sequence. NOTE: this is less easily exploitable in 1.3.4 and later because of a Same Origin Policy protection mechanism."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-20"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-9846", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}}, "publishedDate": "2018-04-07T21:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.3.5", "versionStartIncluding": "1.2.0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2018-05-24T17:12Z"}