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             AUSCERT External Security Bulletin Redistribution

      Security Bulletin: IBM Aspera WebApps (Shares, Faspex, Console,
            Orchestrator) and products are affected by OpenSSL
                   Vulnerability (CVE-ID: CVE-2019-1543)
                             10 February 2020


        AusCERT Security Bulletin Summary

Product:           IBM Aspera Orchestrator
                   IBM Aspera Faspex
                   IBM Shares
                   IBM Aspera Console
Publisher:         IBM
Operating System:  Linux variants
Impact/Access:     Reduced Security -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-1543  

Reference:         ESB-2019.3295

Original Bulletin: 

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IBM Aspera WebApps (Shares, Faspex, Console, Orchestrator) and products are
affected by OpenSSL Vulnerability (CVE-ID: CVE-2019-1543)

Security Bulletin


IBM Aspera WebApps (Shares, Faspex, Console, Orchestrator) products have
addressed the following OpenSSL vulnerability

Vulnerability Details

CVEID: CVE-2019-1543
DESCRIPTION: ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce
input for every encryption operation. RFC 7539 specifies that the nonce value
(IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length and
front pads the nonce with 0 bytes if it is less than 12 bytes. However it also
incorrectly allows a nonce to be set of up to 16 bytes. In this case only the
last 12 bytes are significant and any additional leading bytes are ignored. It
is a requirement of using this cipher that nonce values are unique. Messages
encrypted using a reused nonce value are susceptible to serious confidentiality
and integrity attacks. If an application changes the default nonce length to be
longer than 12 bytes and then makes a change to the leading bytes of the nonce
expecting the new value to be a new unique nonce then such an application could
inadvertently encrypt messages with a reused nonce. Additionally the ignored
bytes in a long nonce are not covered by the integrity guarantee of this
cipher. Any application that relies on the integrity of these ignored leading
bytes of a long nonce may be further affected. Any OpenSSL internal use of this
cipher, including in SSL/TLS, is safe because no such use sets such a long
nonce value. However user applications that use this cipher directly and set a
non-default nonce length to be longer than 12 bytes may be vulnerable. OpenSSL
versions 1.1.1 and 1.1.0 are affected by this issue. Due to the limited scope
of affected deployments this has been assessed as low severity and therefore we
are not creating new releases at this time. Fixed in OpenSSL 1.1.1c (Affected
1.1.1-1.1.1b). Fixed in OpenSSL 1.1.0k (Affected 1.1.0-1.1.0j).
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
157841 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)

Affected Products and Versions

|Affected Product(s)    |Version(s)|
|IBM Aspera Orchestrator|3.1.1     |
|IBM Shares             |1.9.12    |
|IBM Aspera Faspex      |4.2.1     |
|IBM Aspera Console     |3.3.3     |


|Affected Product(s)    |Version(s)|
|IBM Aspera Orchestrator|3.2.0     |
|IBM Shares             |1.9.14    |
|IBM Aspera Faspex      |4.3.0     |
|IBM Aspera Console     |3.4.0     |

Workarounds and Mitigations


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